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java.lang.NullPointerException: Registry Object not present: helpmeplease:rotem_block

Posted June 18, 20205 yr

Hello! I've tried to add a new block to minecraft, but sadly whenever I run the game and move to the tab which also uses the block i've created as the tab's picture I get this error:

java.lang.NullPointerException: Registry Object not present: helpmeplease:rotem_block

The block itself is created inside of "RegistryHandler" class

Here's the git repository of my mod currently:

https://github.com/Kidsm/Minecraft-Mod

Here's the crash log:

---- Minecraft Crash Report ----
// Who set us up the TNT?

Time: 6/16/20, 11:00 AM
Description: Rendering screen

java.lang.NullPointerException: Registry Object not present: helpmeplease:rotem_block
	at java.util.Objects.requireNonNull(Objects.java:348) ~[?:?] {}
	at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:92) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at com.Kidsm.Help.Help$1.createIcon(Help.java:57) ~[main/:?] {re:classloading}
	at net.minecraft.item.ItemGroup.getIcon(ItemGroup.java:149) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.client.gui.screen.inventory.CreativeScreen.drawTab(CreativeScreen.java:847) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.inventory.CreativeScreen.drawGuiContainerBackgroundLayer(CreativeScreen.java:724) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.inventory.ContainerScreen.render(ContainerScreen.java:84) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.DisplayEffectsScreen.render(DisplayEffectsScreen.java:46) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraft.client.gui.screen.inventory.CreativeScreen.render(CreativeScreen.java:621) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:368) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading}
	at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:492) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:961) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.Minecraft.run(Minecraft.java:558) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
	at net.minecraft.client.main.Main.main(Main.java:177) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?] {}
	at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?] {}
	at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?] {}
	at java.lang.reflect.Method.invoke(Method.java:564) ~[?:?] {}
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55) ~[forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81) [modlauncher-5.1.0.jar:?] {}
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65) [modlauncher-5.1.0.jar:?] {}
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102) [forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar:?] {}


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

-- Head --
Thread: Render thread
Stacktrace:
	at java.base/java.util.Objects.requireNonNull(Objects.java:348)
	at net.minecraftforge.fml.RegistryObject.get(RegistryObject.java:92)
	at com.Kidsm.Help.Help$1.createIcon(Help.java:57)
	at net.minecraft.item.ItemGroup.getIcon(ItemGroup.java:149)
	at net.minecraft.client.gui.screen.inventory.CreativeScreen.drawTab(CreativeScreen.java:847)
	at net.minecraft.client.gui.screen.inventory.CreativeScreen.drawGuiContainerBackgroundLayer(CreativeScreen.java:724)
	at net.minecraft.client.gui.screen.inventory.ContainerScreen.render(ContainerScreen.java:84)
	at net.minecraft.client.gui.DisplayEffectsScreen.render(DisplayEffectsScreen.java:46)
	at net.minecraft.client.gui.screen.inventory.CreativeScreen.render(CreativeScreen.java:621)
	at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:368)

-- Screen render details --
Details:
	Screen name: net.minecraft.client.gui.screen.inventory.CreativeScreen
	Mouse location: Scaled: (305, 11). Absolute: (610.000000, 22.000000)
	Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2.000000

-- Affected level --
Details:
	All players: 1 total; [ClientPlayerEntity['Dev'/361, l='MpServer', x=-10.49, y=72.00, z=50.52]]
	Chunk stats: Client Chunk Cache: 841, 552
	Level dimension: DimensionType{minecraft:overworld}
	Level name: MpServer
	Level seed: -4945284877166482049
	Level generator: ID 00 - default, ver 1. Features enabled: false
	Level generator options: {}
	Level spawn location: World: (-16,63,31), Chunk: (at 0,3,15 in -1,1; contains blocks -16,0,16 to -1,255,31), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
	Level time: 139 game time, 139 day time
	Known server brands: 
	Level was modded: false
	Level storage version: 0x00000 - Unknown?
	Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
	Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
	Server brand: forge
	Server type: Integrated singleplayer server
Stacktrace:
	at net.minecraft.client.world.ClientWorld.fillCrashReport(ClientWorld.java:457)
	at net.minecraft.client.Minecraft.addGraphicsAndWorldToCrashReport(Minecraft.java:1839)
	at net.minecraft.client.Minecraft.run(Minecraft.java:572)
	at net.minecraft.client.main.Main.main(Main.java:177)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:564)
	at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
	at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54)
	at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72)
	at cpw.mods.modlauncher.Launcher.run(Launcher.java:81)
	at cpw.mods.modlauncher.Launcher.main(Launcher.java:65)
	at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:102)

-- System Details --
Details:
	Minecraft Version: 1.15.2
	Minecraft Version ID: 1.15.2
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 14.0.1, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode, sharing), Oracle Corporation
	Memory: 330475008 bytes (315 MB) / 882900992 bytes (842 MB) up to 1996488704 bytes (1904 MB)
	CPUs: 8
	JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
	ModLauncher: 5.1.0+69+master.79f13f7
	ModLauncher launch target: fmluserdevclient
	ModLauncher naming: mcp
	ModLauncher services: 
		/eventbus-2.2.0-service.jar eventbus PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar object_holder_definalize PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtime_enum_extender PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar capability_inject_definalize PLUGINSERVICE 
		/accesstransformers-2.1.1-shadowed.jar accesstransformer PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar runtimedistcleaner PLUGINSERVICE 
		/forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-launcher.jar fml TRANSFORMATIONSERVICE 
	FML: 31.2
	Forge: net.minecraftforge:31.2.0
	FML Language Providers: 
		[email protected]
		minecraft@1
	Mod List: 
		client-extra.jar Minecraft {[email protected] DONE}
		main Help Me {helpmeplease@NONE DONE}
		forge-1.15.2-31.2.0_mapped_snapshot_20200514-1.15.1-recomp.jar Forge {[email protected] DONE}
	Launched Version: MOD_DEV
	Backend library: LWJGL version 3.2.2 build 10
	Backend API: Intel(R) UHD Graphics 620 GL version 4.6.0 - Build 26.20.100.7262, Intel
	GL Caps: Using framebuffer using OpenGL 3.0
	Using VBOs: Yes
	Is Modded: Definitely; Client brand changed to 'forge'
	Type: Client (map_client.txt)
	Resource Packs: 
	Current Language: English (US)
	CPU: 8x Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz

Quote

June 18, 20205 yr

Author

7 minutes ago, diesieben07 said:

It is very unlikely that you own kidsm.com.

Please follow Java naming conventions (package names should be all lowercase).

You never call this method, as such you never register your DefererredRegistries to the event bus.

1: Yeah I wasn't bothered with changing it yet, I'm just learning
2: Oh I didn't notice that, will be fixed
3: ehmmm what? where?

Quote

June 18, 20205 yr

Author

4 minutes ago, diesieben07 said:

I linked you a method. You never call it, so it's code never runs.-

Oh, so to fix it I just need to call the function? where?

Edited June 18, 20205 yr by Kidsm
Forgot to actually write in proper java

Quote

June 18, 20205 yr

Author

1 minute ago, diesieben07 said:

That is not valid Java.

Please learn basic Java before writing a mod.

Yeah I edited my reply, sorry for that. I'm familiar with java but not too much with minecraft modding, just started learning so I'm

trying to get familiar with all of the stuff and also trying to add simple stuff to get started. Where should I call the init function? I thought I did that but now it seems that I've forgot to do that 0.0

Quote

June 18, 20205 yr

Author

12 minutes ago, diesieben07 said:

DeferredRegister should be registered to the event bus in your @Mod class constructor.

Oh I get it. Thanks!

Quote

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java.lang.NullPointerException: Registry Object not present: helpmeplease:rotem_block

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