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[Solved] Why does this crash?


EnderPoint

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---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 14/03/22, 4:23 pm
Description: mouseClicked event handler

java.lang.NullPointerException: mouseClicked event handler
	at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:273) ~[?:?] {}
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] {}
	at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:992) ~[?:?] {}
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[?:?] {}
	at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) ~[?:?] {}
	at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:992) ~[?:?] {}
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?] {}
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?] {}
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[?:?] {}
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] {}
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?] {}
	at net.minecraft.world.level.biome.BiomeGenerationSettings.<init>(BiomeGenerationSettings.java:50) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.world.level.biome.BiomeGenerationSettings$Builder.build(BiomeGenerationSettings.java:110) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraftforge.common.ForgeHooks.enhanceBiome(ForgeHooks.java:888) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2376%2382!/:?] {re:classloading}
	at net.minecraft.world.level.biome.Biome.lambda$static$6(Biome.java:55) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at com.mojang.datafixers.util.Function6.lambda$null$4(Function6.java:18) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult$Instance.ap3(DataResult.java:337) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$5.decode(RecordCodecBuilder.java:321) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.Decoder.parse(Decoder.java:18) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at net.minecraft.resources.RegistryResourceAccess$InMemoryStorage.parseElement(RegistryResourceAccess.java:143) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.resources.RegistryReadOps.readAndRegisterElement(RegistryReadOps.java:102) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.resources.RegistryReadOps.lambda$decodeElements$5(RegistryReadOps.java:86) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at net.minecraft.resources.RegistryReadOps.decodeElements(RegistryReadOps.java:85) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.core.RegistryAccess.readRegistry(RegistryAccess.java:154) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.core.RegistryAccess.load(RegistryAccess.java:146) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.resources.RegistryReadOps.createAndLoad(RegistryReadOps.java:35) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.core.RegistryAccess.builtin(RegistryAccess.java:104) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.client.gui.screens.worldselection.CreateWorldScreen.create(CreateWorldScreen.java:118) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screens.worldselection.SelectWorldScreen.lambda$init$4(SelectWorldScreen.java:60) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.Button.onPress(Button.java:29) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.AbstractButton.onClick(AbstractButton.java:17) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.AbstractWidget.mouseClicked(AbstractWidget.java:111) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.events.ContainerEventHandler.mouseClicked(ContainerEventHandler.java:28) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.lambda$onPress$0(MouseHandler.java:88) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screens.Screen.wrapScreenError(Screen.java:527) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.onPress(MouseHandler.java:85) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.lambda$setup$4(MouseHandler.java:185) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.thread.BlockableEventLoop.execute(BlockableEventLoop.java:90) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.MouseHandler.lambda$setup$5(MouseHandler.java:184) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar%2355!/:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar%2361!/:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3174) ~[lwjgl-glfw-3.2.2.jar%2355!/:build 10] {}
	at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(RenderSystem.java:185) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1066) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:661) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:205) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
	at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:38) ~[fmlloader-1.18.1-39.1.2.jar%230!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {}


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:273) ~[?:?] {}
	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?] {}
	at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:992) ~[?:?] {}
	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[?:?] {}
	at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:276) ~[?:?] {}
	at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:992) ~[?:?] {}
	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?] {}
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?] {}
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[?:?] {}
	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] {}
	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?] {}
	at net.minecraft.world.level.biome.BiomeGenerationSettings.<init>(BiomeGenerationSettings.java:50) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.world.level.biome.BiomeGenerationSettings$Builder.build(BiomeGenerationSettings.java:110) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraftforge.common.ForgeHooks.enhanceBiome(ForgeHooks.java:888) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2376%2382!/:?] {re:classloading}
	at net.minecraft.world.level.biome.Biome.lambda$static$6(Biome.java:55) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at com.mojang.datafixers.util.Function6.lambda$null$4(Function6.java:18) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult$Instance.ap3(DataResult.java:337) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.codecs.RecordCodecBuilder$Instance$5.decode(RecordCodecBuilder.java:321) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.codecs.RecordCodecBuilder$2.decode(RecordCodecBuilder.java:107) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.MapDecoder.lambda$compressedDecode$0(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.MapDecoder.compressedDecode(MapDecoder.java:52) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.MapCodec$MapCodecCodec.decode(MapCodec.java:91) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.Decoder.parse(Decoder.java:18) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at net.minecraft.resources.RegistryResourceAccess$InMemoryStorage.parseElement(RegistryResourceAccess.java:143) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.resources.RegistryReadOps.readAndRegisterElement(RegistryReadOps.java:102) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.resources.RegistryReadOps.lambda$decodeElements$5(RegistryReadOps.java:86) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at com.mojang.serialization.DataResult.lambda$flatMap$10(DataResult.java:138) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.datafixers.util.Either$Left.map(Either.java:38) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at com.mojang.serialization.DataResult.flatMap(DataResult.java:136) ~[datafixerupper-4.0.26.jar%2343!/:?] {}
	at net.minecraft.resources.RegistryReadOps.decodeElements(RegistryReadOps.java:85) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.core.RegistryAccess.readRegistry(RegistryAccess.java:154) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.core.RegistryAccess.load(RegistryAccess.java:146) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.resources.RegistryReadOps.createAndLoad(RegistryReadOps.java:35) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.core.RegistryAccess.builtin(RegistryAccess.java:104) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading}
	at net.minecraft.client.gui.screens.worldselection.CreateWorldScreen.create(CreateWorldScreen.java:118) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screens.worldselection.SelectWorldScreen.lambda$init$4(SelectWorldScreen.java:60) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.Button.onPress(Button.java:29) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.AbstractButton.onClick(AbstractButton.java:17) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.AbstractWidget.mouseClicked(AbstractWidget.java:111) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.components.events.ContainerEventHandler.mouseClicked(ContainerEventHandler.java:28) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.lambda$onPress$0(MouseHandler.java:88) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screens.Screen.wrapScreenError(Screen.java:527) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.onPress(MouseHandler.java:85) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.lambda$setup$4(MouseHandler.java:185) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.thread.BlockableEventLoop.execute(BlockableEventLoop.java:90) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.MouseHandler.lambda$setup$5(MouseHandler.java:184) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar%2355!/:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar%2361!/:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3174) ~[lwjgl-glfw-3.2.2.jar%2355!/:build 10] {}
-- Affected screen --
Details:
	Screen name: net.minecraft.client.gui.screens.worldselection.SelectWorldScreen
Stacktrace:
	at net.minecraft.client.gui.screens.Screen.wrapScreenError(Screen.java:527) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.onPress(MouseHandler.java:85) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.MouseHandler.lambda$setup$4(MouseHandler.java:185) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.util.thread.BlockableEventLoop.execute(BlockableEventLoop.java:90) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.MouseHandler.lambda$setup$5(MouseHandler.java:184) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36) ~[lwjgl-glfw-3.2.2.jar%2355!/:build 10] {}
	at org.lwjgl.system.JNI.invokeV(Native Method) ~[lwjgl-3.2.2.jar%2361!/:build 10] {}
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3174) ~[lwjgl-glfw-3.2.2.jar%2355!/:build 10] {}
	at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(RenderSystem.java:185) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1066) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:661) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:205) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
	at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:38) ~[fmlloader-1.18.1-39.1.2.jar%230!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {}


-- Last reload --
Details:
	Reload number: 1
	Reload reason: initial
	Finished: Yes
	Packs: Default, Mod Resources
Stacktrace:
	at net.minecraft.client.ResourceLoadStateTracker.fillCrashReport(ResourceLoadStateTracker.java:51) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.fillReport(Minecraft.java:2256) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:678) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:205) ~[forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.jar%2377!/:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?] {}
	at net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:38) ~[fmlloader-1.18.1-39.1.2.jar%230!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:106) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:77) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-9.1.3.jar%2310!/:?] {}
	at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:149) [bootstraplauncher-1.0.0.jar:?] {}


-- System Details --
Details:
	Minecraft Version: 1.18.1
	Minecraft Version ID: 1.18.1
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 17.0.2, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
	Memory: 1406385608 bytes (1341 MiB) / 2558525440 bytes (2440 MiB) up to 4253024256 bytes (4056 MiB)
	CPUs: 16
	Processor Vendor: GenuineIntel
	Processor Name: Intel(R) Core(TM) i7-10870H CPU @ 2.20GHz
	Identifier: Intel64 Family 6 Model 165 Stepping 2
	Microarchitecture: unknown
	Frequency (GHz): 2.21
	Number of physical packages: 1
	Number of physical CPUs: 8
	Number of logical CPUs: 16
	Graphics card #0 name: Intel(R) UHD Graphics
	Graphics card #0 vendor: Intel Corporation (0x8086)
	Graphics card #0 VRAM (MB): 1024.00
	Graphics card #0 deviceId: 0x9bc4
	Graphics card #0 versionInfo: DriverVersion=26.20.100.7985
	Graphics card #1 name: NVIDIA GeForce GTX 1650 Ti
	Graphics card #1 vendor: NVIDIA (0x10de)
	Graphics card #1 VRAM (MB): 4095.00
	Graphics card #1 deviceId: 0x1f95
	Graphics card #1 versionInfo: DriverVersion=30.0.15.1165
	Memory slot #0 capacity (MB): 8192.00
	Memory slot #0 clockSpeed (GHz): 3.20
	Memory slot #0 type: DDR4
	Memory slot #1 capacity (MB): 8192.00
	Memory slot #1 clockSpeed (GHz): 3.20
	Memory slot #1 type: DDR4
	Virtual memory max (MB): 34651.71
	Virtual memory used (MB): 19607.91
	Swap memory total (MB): 18432.00
	Swap memory used (MB): 173.55
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	Launched Version: MOD_DEV
	Backend library: LWJGL version 3.2.2 SNAPSHOT
	Backend API: NVIDIA GeForce GTX 1650 Ti/PCIe/SSE2 GL version 3.2.0 NVIDIA 511.65, NVIDIA Corporation
	Window size: 1920x1080
	GL Caps: Using framebuffer using OpenGL 3.2
	GL debug messages: 
	Using VBOs: Yes
	Is Modded: Definitely; Client brand changed to 'forge'
	Type: Client (map_client.txt)
	Graphics mode: fancy
	Resource Packs: 
	Current Language: English (US)
	CPU: 16x Intel(R) Core(TM) i7-10870H CPU @ 2.20GHz
	ModLauncher: 9.1.3+9.1.3+main.9b69c82a
	ModLauncher launch target: forgeclientuserdev
	ModLauncher naming: mcp
	ModLauncher services: 
		 mixin PLUGINSERVICE 
		 eventbus PLUGINSERVICE 
		 object_holder_definalize PLUGINSERVICE 
		 runtime_enum_extender PLUGINSERVICE 
		 capability_token_subclass PLUGINSERVICE 
		 accesstransformer PLUGINSERVICE 
		 runtimedistcleaner PLUGINSERVICE 
		 mixin TRANSFORMATIONSERVICE 
		 fml TRANSFORMATIONSERVICE 
	FML Language Providers: 
		[email protected]
		javafml@null
	Mod List: 
		forge-1.18.1-39.1.2_mapped_official_1.18.1-recomp.|Minecraft                     |minecraft                     |1.18.1              |DONE      |Manifest: a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
		                                                  |Forge                         |forge                         |39.1.2              |DONE      |Manifest: NOSIGNATURE
		main                                              |Uranium Mod                   |mymod                         |0.0NONE             |DONE      |Manifest: NOSIGNATURE
	Crash Report UUID: 949b0f9a-861f-4a6c-858c-b474acdc06ea
	FML: 39.1
	Forge: net.minecraftforge:39.1.2

my oregen class:
 

package com.mymod.world.gen;


import com.mymod.MyMod;
import net.minecraft.data.BuiltinRegistries;
import net.minecraft.data.worldgen.features.OreFeatures;
import net.minecraft.data.worldgen.placement.PlacementUtils;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.level.biome.Biome;
import net.minecraft.world.level.levelgen.GenerationStep;
import net.minecraft.world.level.levelgen.VerticalAnchor;
import net.minecraft.world.level.levelgen.feature.ConfiguredFeature;
import net.minecraft.world.level.levelgen.feature.Feature;
import net.minecraft.world.level.levelgen.feature.configurations.FeatureConfiguration;
import net.minecraft.world.level.levelgen.feature.configurations.OreConfiguration;
import net.minecraft.world.level.levelgen.placement.*;
import net.minecraft.world.level.levelgen.structure.templatesystem.RuleTest;
import net.minecraft.world.level.levelgen.structure.templatesystem.TagMatchTest;
import net.minecraftforge.common.Tags;
import net.minecraftforge.event.world.BiomeLoadingEvent;
import net.minecraftforge.eventbus.api.EventPriority;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.common.Mod;

@Mod.EventBusSubscriber(modid = MyMod.MODID, bus= Mod.EventBusSubscriber.Bus.FORGE)
public class OreGen {

    public static final int OVERWORLD_VEINSIZE = 5;
    public static final int OVERWORLD_AMOUNT = 3;
    public static final int DEEPSLATE_VEINSIZE = 5;
    public static final int DEEPSLATE_AMOUNT = 3;
    public static final int NETHER_VEINSIZE = 5;
    public static final int NETHER_AMOUNT = 3;
    public static final int END_VEINSIZE = 10;
    public static final int END_AMOUNT = 6;

    public static RuleTest IN_ENDSTONE = new TagMatchTest(Tags.Blocks.END_STONES);

    public static PlacedFeature OVERWORLD_OREGEN;
    public static PlacedFeature DEEPSLATE_OREGEN;
    public static PlacedFeature NETHER_OREGEN;
    public static PlacedFeature END_OREGEN;


    public static void registerConfiguredFeatures()
    {
        OreConfiguration overworldConfig = new OreConfiguration(OreFeatures.STONE_ORE_REPLACEABLES, MyMod.RegistryEvents.UraniumOre.defaultBlockState(), OVERWORLD_VEINSIZE);
        OVERWORLD_OREGEN = registerPlacedFeature("uranium_ore", Feature.ORE.configured(overworldConfig),
                CountPlacement.of(OVERWORLD_AMOUNT),
                InSquarePlacement.spread(),
                BiomeFilter.biome(),
                HeightRangePlacement.uniform(VerticalAnchor.absolute(0), VerticalAnchor.absolute(265)));

        OreConfiguration deepslateConfig = new OreConfiguration(OreFeatures.DEEPSLATE_ORE_REPLACEABLES, MyMod.RegistryEvents.UraniumOre.defaultBlockState(), OVERWORLD_VEINSIZE);
        OVERWORLD_OREGEN = registerPlacedFeature("uranium_ore", Feature.ORE.configured(overworldConfig),
                CountPlacement.of(DEEPSLATE_AMOUNT),
                InSquarePlacement.spread(),
                BiomeFilter.biome(),
                HeightRangePlacement.uniform(VerticalAnchor.bottom(), VerticalAnchor.aboveBottom(64)));

        OreConfiguration netherConfig = new OreConfiguration(OreFeatures.NETHER_ORE_REPLACEABLES, MyMod.RegistryEvents.UraniumOre.defaultBlockState(), OVERWORLD_VEINSIZE);
        NETHER_OREGEN = registerPlacedFeature("uranium_ore", Feature.ORE.configured(overworldConfig),
                CountPlacement.of(NETHER_AMOUNT),
                InSquarePlacement.spread(),
                BiomeFilter.biome(),
                HeightRangePlacement.uniform(VerticalAnchor.absolute(0), VerticalAnchor.absolute(265)));

        OreConfiguration endConfig = new OreConfiguration(IN_ENDSTONE, MyMod.RegistryEvents.UraniumOre.defaultBlockState(), OVERWORLD_VEINSIZE);
        END_OREGEN = registerPlacedFeature("uranium_ore", Feature.ORE.configured(overworldConfig),
                CountPlacement.of(END_AMOUNT),
                InSquarePlacement.spread(),
                BiomeFilter.biome(),
                HeightRangePlacement.uniform(VerticalAnchor.absolute(0), VerticalAnchor.absolute(265)));
    }

    private static <C extends FeatureConfiguration, F extends Feature<C>> PlacedFeature registerPlacedFeature(String registeryName, ConfiguredFeature<C, F> feature, PlacementModifier ... placementModifiers)
    {
        PlacedFeature placed = BuiltinRegistries.register(BuiltinRegistries.CONFIGURED_FEATURE, new ResourceLocation(registeryName), feature).placed(placementModifiers);
        return PlacementUtils.register(registeryName, placed);
    }

    @SubscribeEvent(priority = EventPriority.HIGH)
    public static void biomeLoading(final BiomeLoadingEvent event) {

        if (event.getCategory() == Biome.BiomeCategory.THEEND) {
            event.getGeneration().addFeature(GenerationStep.Decoration.UNDERGROUND_ORES, END_OREGEN);
        }
        else if (event.getCategory() == Biome.BiomeCategory.NETHER) {
            event.getGeneration().addFeature(GenerationStep.Decoration.UNDERGROUND_ORES, NETHER_OREGEN);
        }
        else  {
            event.getGeneration().addFeature(GenerationStep.Decoration.UNDERGROUND_ORES, OVERWORLD_OREGEN);
            event.getGeneration().addFeature(GenerationStep.Decoration.UNDERGROUND_ORES, DEEPSLATE_OREGEN);
        }
    }
}

my "main" class:

package com.mymod;

import com.mymod.world.gen.OreGen;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.item.BlockItem;
import net.minecraft.world.item.CreativeModeTab;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.Rarity;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.Blocks;
import net.minecraft.world.level.block.OreBlock;
import net.minecraft.world.level.block.SoundType;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.material.Material;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.RegistryEvent;
import net.minecraftforge.event.server.ServerStartingEvent;
import net.minecraftforge.eventbus.api.SubscribeEvent;
import net.minecraftforge.fml.InterModComms;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
import net.minecraftforge.fml.event.lifecycle.InterModEnqueueEvent;
import net.minecraftforge.fml.event.lifecycle.InterModProcessEvent;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import java.util.stream.Collectors;

// The value here should match an entry in the META-INF/mods.toml file
@Mod(MyMod.MODID)
public class MyMod
{
    public static final String MODID = "mymod";

        // Directly reference a log4j logger.
    private static final Logger LOGGER = LogManager.getLogger();

    public MyMod() {

        // Register the setup method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::setup);
        // Register the enqueueIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::enqueueIMC);
        // Register the processIMC method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::processIMC);

        // Register ourselves for server and other game events we are interested in
        MinecraftForge.EVENT_BUS.register(this);
    }

    private void setup(final FMLCommonSetupEvent event)
    {
        // some preinit code
        LOGGER.info("HELLO FROM PREINIT");
        LOGGER.info("DIRT BLOCK >> {}", Blocks.DIRT.getRegistryName());

        event.enqueueWork(OreGen::registerConfiguredFeatures);
    }

    private void enqueueIMC(final InterModEnqueueEvent event)
    {
        // some example code to dispatch IMC to another mod
        InterModComms.sendTo("MyMod", "helloworld", () -> { LOGGER.info("Hello world from the MDK"); return "Hello world";});
    }

    private void processIMC(final InterModProcessEvent event)
    {
        // some example code to receive and process InterModComms from other mods
        LOGGER.info("Got IMC {}", event.getIMCStream().
                map(m->m.messageSupplier().get()).
                collect(Collectors.toList()));
    }
    // You can use SubscribeEvent and let the Event Bus discover methods to call
    @SubscribeEvent
    public void onServerStarting(ServerStartingEvent event) {
        // do something when the server starts
        LOGGER.info("HELLO from server starting");
    }

    // You can use EventBusSubscriber to automatically subscribe events on the contained class (this is subscribing to the MOD
    // Event bus for receiving Registry Events)
    @Mod.EventBusSubscriber(bus=Mod.EventBusSubscriber.Bus.MOD)
    public static class RegistryEvents {

        public static final Block MyBlock = new Block(BlockBehaviour.Properties.of(Material.STONE).friction(0.5f)).setRegistryName(MODID, "myblock");
        public static final Block UraniumBlock = new Block(BlockBehaviour.Properties.of(Material.METAL).noOcclusion().strength(2).sound(SoundType.AMETHYST).lightLevel(value -> 20).requiresCorrectToolForDrops()).setRegistryName(MODID, "uraniumblock");
        public static final Block UraniumOre = new OreBlock(BlockBehaviour.Properties.of(Material.METAL).strength(2.2f).sound(SoundType.METAL).lightLevel(value -> 5).requiresCorrectToolForDrops()).setRegistryName("uranium_ore");

        public static final Item UraniumShards = new Item(new Item.Properties().stacksTo(64).tab(CreativeModeTab.TAB_MATERIALS).rarity(Rarity.RARE)).setRegistryName(MODID, "uranium_shard");
        public static final Item RawUranium = new Item((new Item.Properties().rarity(Rarity.RARE).tab(CreativeModeTab.TAB_MATERIALS).stacksTo(68))).setRegistryName(MODID, "raw_uranium");

        @SubscribeEvent
            public static void RegisterBlocks(final RegistryEvent.Register<Block> event) {
            // register a new block here
            event.getRegistry().register(MyBlock);
            event.getRegistry().register(UraniumBlock);
            event.getRegistry().register(UraniumOre);

            LOGGER.info("HELLO from Register Block");
        }

        @SubscribeEvent
        public static void  RegisterItemBlocks(final RegistryEvent.Register<Item> event) {
            event.getRegistry().register(new BlockItem(RegistryEvents.MyBlock, new Item.Properties().stacksTo(2).tab(CreativeModeTab.TAB_BUILDING_BLOCKS)).setRegistryName(MyBlock.getRegistryName()));
            event.getRegistry().register(new BlockItem(RegistryEvents.UraniumBlock, new Item.Properties().tab(CreativeModeTab.TAB_MATERIALS).rarity(Rarity.EPIC).stacksTo(64)).setRegistryName(UraniumBlock.getRegistryName()));
            event.getRegistry().register(new BlockItem(RegistryEvents.UraniumOre, new Item.Properties().tab(CreativeModeTab.TAB_MATERIALS).stacksTo(64).rarity(Rarity.UNCOMMON)).setRegistryName(UraniumOre.getRegistryName()));

            event.getRegistry().register(UraniumShards);
            event.getRegistry().register(RawUranium);
        }

    }
}

i was following this tutorial : 

 

Edited by EnderPoint
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package com.mymod;

import net.minecraft.world.item.BlockItem;
import net.minecraft.world.item.CreativeModeTab;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.Rarity;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.SoundType;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.material.Material;
import net.minecraftforge.eventbus.api.IEventBus;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
import net.minecraftforge.registries.DeferredRegister;
import net.minecraftforge.registries.ForgeRegistries;
import net.minecraftforge.registries.RegistryObject;

public class Registration {
    public static final DeferredRegister<Block> BLOCKS = DeferredRegister.create(ForgeRegistries.BLOCKS, MyMod.MODID);
    public static final DeferredRegister<Item> ITEMS = DeferredRegister.create(ForgeRegistries.ITEMS, MyMod.MODID);

    public static void init()
    {
        IEventBus bus = FMLJavaModLoadingContext.get().getModEventBus();
        BLOCKS.register(bus);
        ITEMS.register(bus);
    }

    public static final RegistryObject<Block> UraniumBlock = BLOCKS.register("uraniumblock", () -> new Block(BlockBehaviour.Properties.of(Material.METAL).noOcclusion().strength(2).sound(SoundType.AMETHYST).lightLevel(value -> 20).requiresCorrectToolForDrops()));
    public static final RegistryObject<Item> UraniumBlock_Item = fromBlock(UraniumBlock, new Item.Properties().tab(CreativeModeTab.TAB_MATERIALS).rarity(Rarity.EPIC).stacksTo(64));


    public static <B extends Block> RegistryObject<Item> fromBlock(RegistryObject<B> block, Item.Properties properties)
    {
        return ITEMS.register(block.getId().getPath(), () -> new BlockItem(block.get(), properties));
    }
}

is this how you ment i should be registering blocks and items and itemblocks?

 

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package com.mymod;

import net.minecraft.world.item.BlockItem;
import net.minecraft.world.item.CreativeModeTab;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.Rarity;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.SoundType;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.material.Material;
import net.minecraftforge.eventbus.api.IEventBus;
import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
import net.minecraftforge.registries.DeferredRegister;
import net.minecraftforge.registries.ForgeRegistries;
import net.minecraftforge.registries.RegistryObject;

public class Registration {
    public static final DeferredRegister<Block> BLOCKS = DeferredRegister.create(ForgeRegistries.BLOCKS, MyMod.MODID);
    public static final DeferredRegister<Item> ITEMS = DeferredRegister.create(ForgeRegistries.ITEMS, MyMod.MODID);

    public static void init()
    {
        IEventBus bus = FMLJavaModLoadingContext.get().getModEventBus();
        BLOCKS.register(bus);
        ITEMS.register(bus);
    }

    public static final RegistryObject<Block> UraniumBlock = BLOCKS.register("uraniumblock", () -> new Block(BlockBehaviour.Properties.of(Material.METAL).noOcclusion().strength(2).sound(SoundType.AMETHYST).lightLevel(value -> 20).requiresCorrectToolForDrops()));
    public static final RegistryObject<Item> UraniumBlock_Item = fromBlock(UraniumBlock, new Item.Properties().tab(CreativeModeTab.TAB_MATERIALS).rarity(Rarity.EPIC).stacksTo(64));


    public static <B extends Block> RegistryObject<Item> fromBlock(RegistryObject<B> block, Item.Properties properties)
    {
        return ITEMS.register(block.getId().getPath(), () -> new BlockItem(block.get(), properties));
    }
}

this is not working. am i missing something here?

 

 

Edited by EnderPoint
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  • EnderPoint changed the title to [Solved] Why does this crash?

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    • I'm developing a dimension, but it's kinda resource intensive so some times during player teleporting it lags behind making the player phase down into the void, so im trying to implement some kind of pregeneration to force the game loading a small set of chunks in the are the player will teleport to. Some of the things i've tried like using ServerLevel and ServerChunkCache methods like getChunk() dont actually trigger chunk generation if the chunk isn't already on persistent storage (already generated) or placing tickets, but that doesn't work either. Ideally i should be able to check when the task has ended too. I've peeked around some pregen engines, but they're too complex for my current understanding of the system of which I have just a basic understanding (how ServerLevel ,ServerChunkCache  and ChunkMap work) of. Any tips or other classes I should be looking into to understand how to do this correctly?
    • https://mclo.gs/4UC49Ao
    • Way back in the Forge 1.17 days, work started for adding JPMS (Java Platform Module Support) to ModLauncher and ForgeModLoader. This has been used internally by Forge and some libraries for a while now, but mods (those with mods.toml specifically) have not been able to take advantage of it. As of Forge 1.21.1 and 1.21.3, this is now possible!   What is JPMS and what does it mean for modders? JPMS is the Java Platform Module System, introduced in Java 9. It allows you to define modules, which are collections of packages and resources that can be exported or hidden from other modules. This allows for much more fine-tuned control over visibility, cleaner syntax for service declarations and support for sealed types across packages. For example, you might have a mod with a module called `com.example.mod` that exports `com.example.mod.api` and `com.example.mod.impl` to other mods, but hides `com.example.mod.internal` from them. This would allow you to have a clean API for other mods to use, while keeping your internal implementation details hidden from IDE hints, helping prevent accidental usage of internals that might break without prior notice. This is particularly useful if you'd like to use public records with module-private constructors or partially module-private record components, as you can create a sealed interface that only your record implements, having the interface be exported and the record hidden. It's also nice for declaring and using services, as you'll get compile-time errors from the Java compiler for typos and the like, rather than deferring to runtime errors. In more advanced cases, you can also have public methods that are only accessible to specific other modules -- handy if you want internal interactions between multiple of your own mods.   How do I bypass it? We understand there may be drama in implementing a system that prevents mods from accessing each other's internals when necessary (like when a mod is abandoned or you need to fix a compat issue) -- after all, we are already modding a game that doesn't have explicit support for Java mods yet. We have already thought of this and are offering APIs from day one to selectively bypass module restrictions. Let me be clear: Forge mods are not required to use JPMS. If you don't want to use it, you don't have to. The default behaviour is to have fully open, fully exported automatic modules. In Java, you can use the `Add-Opens` and `Add-Exports` manifest attributes to selectively bypass module restrictions of other mods at launch time, and we've added explicit support for these when loading your Forge mods. At compile-time, you can use existing solutions such as the extra-java-module-info Gradle plugin to deal with non-modular dependencies and add extra opens and exports to other modules. Here's an example on how to make the internal package `com.example.examplemod.internal` open to your mod in your build.gradle: tasks.named('jar', Jar) { manifest { attributes([ 'Add-Opens' : 'com.example.examplemod/com.example.examplemod.internal' 'Specification-Title' : mod_id, 'Specification-Vendor' : mod_authors // (...) ]) } } With the above in your mod's jar manifest, you can now reflectively access the classes inside that internal package. Multiple entries are separated with a space, as per Java's official spec. You can also use Add-Exports to directly call without reflection, however you'd need to use the Gradle plugin mentioned earlier to be able to compile. The syntax for Add-Exports is the same as Add-Opens, and instructions for the compile-time step with the Gradle plugin are detailed later in this post. Remember to prefer the opens and exports keywords inside module-info.java for sources you control. The Add-Opens/Add-Exports attributes are only intended for forcing open other mods.   What else is new with module support? Previously, the runtime module name was always forced to the first mod ID in your `mods.toml` file and all packages were forced fully open and exported. Module names are now distinguished from mod IDs, meaning the module name in your module-info.java can be different from the mod ID in your `mods.toml`. This allows you to have a more descriptive module name that doesn't have to be the same as your mod ID, however we strongly recommend including your mod ID as part of your module name to aid troubleshooting. The `Automatic-Module-Name` manifest attribute is now also honoured, allowing you to specify a module name for your mod without needing to create a `module-info.java` file. This is particularly useful for mods that don't care about JPMS features but want to have a more descriptive module name and easier integration with other mods that do use JPMS.   How do I use it? The first step is to create a `module-info.java` file in your mod's source directory. This file should be in the same package as your main mod class, and should look something like this: open module com.example.examplemod { requires net.minecraftforge.eventbus; requires net.minecraftforge.fmlcore; requires net.minecraftforge.forge; requires net.minecraftforge.javafmlmod; requires net.minecraftforge.mergetool.api; requires org.slf4j; requires logging; } For now, we're leaving the whole module open to reflection, which is a good starting point. When we know we want to close something off, we can remove the open modifier from the module and open or export individual packages instead. Remember that you need to be open to Forge (module name net.minecraftforge.forge), otherwise it can't call your mod's constructor. Next is fixing modules in Gradle. While Forge and Java support modules properly, Gradle does not put automatic modules on the module path by default, meaning that the logging module (from com.mojang:logging) is not found. To fix this, add the Gradle plugin and add a compile-time module definition for that Mojang library: plugins { // (...) id 'org.gradlex.extra-java-module-info' version "1.9" } // (...) extraJavaModuleInfo { failOnMissingModuleInfo = false automaticModule("com.mojang:logging", "logging") } The automatic module override specified in your build.gradle should match the runtime one to avoid errors. You can do the same for any library or mod dependency that is missing either a module-info or explicit Automatic-Module-Name, however be aware that you may need to update your mod once said library adds one. That's all you need to get started with module support in your mods. You can learn more about modules and how to use them at dev.java.
    • Faire la mise à jour grâce à ce lien m'a aider personnellement, merci à @Paint_Ninja. https://www.amd.com/en/support 
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