Cant play Java with forge on 1.20.1

Posted April 27Apr 27

I have been working this for a day now and cant seem to figure out why i cant play 1.20.1 with or without mods, so what i did was i tested 1.20.2 and i can play on that but cannot play anything below that please help i have tried everything including uninstalling my drivers and reinstalling iv tried updating them ive tried downloading Java 17 and nothing worked, so heres the data log from forge to help

at net.minecraftforge.fml.loading.FMLLoader.beforeStart(FMLLoader.java:216) ~[fmlloader-1.20.1-47.4.0.jar:1.0]

at net.minecraftforge.fml.loading.targets.CommonLaunchHandler.launchService(CommonLaunchHandler.java:92) ~[fmlloader-1.20.1-47.4.0.jar:?]

at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.Launcher.run(Launcher.java:108) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.Launcher.main(Launcher.java:78) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141) ~[bootstraplauncher-1.1.2.jar:?]

[27Apr2025 12:58:25.383] [main/WARN][mixin/]: Error loading class: net/minecraft/world/entity/ai/attributes/AttributeModifier$Operation (java.lang.ClassNotFoundException: net.minecraft.world.entity.ai.attributes.AttributeModifier$Operation)

[27Apr2025 12:58:25.387] [main/ERROR][net.minecraftforge.eventbus.EventSubclassTransformer/EVENTBUS]: Could not find parent net/minecraft/client/gui/screens/LoadingOverlay for class net/minecraftforge/client/loading/ForgeLoadingOverlay in classloader cpw.mods.modlauncher.TransformingClassLoader@397dfbe8 on thread Thread[main,5,main]

[27Apr2025 12:58:25.387] [main/ERROR][net.minecraftforge.eventbus.EventSubclassTransformer/EVENTBUS]: An error occurred building event handler

java.lang.ClassNotFoundException: net.minecraft.client.gui.screens.LoadingOverlay

at jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) ~[?:?]

at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]

at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:137) ~[securejarhandler-2.1.10.jar:?]

at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]

at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:137) ~[securejarhandler-2.1.10.jar:?]

at java.lang.ClassLoader.loadClass(ClassLoader.java:525) ~[?:?]

at net.minecraftforge.eventbus.EventSubclassTransformer.buildEvents(EventSubclassTransformer.java:97) ~[eventbus-6.0.5.jar:?]

at net.minecraftforge.eventbus.EventSubclassTransformer.transform(EventSubclassTransformer.java:48) ~[eventbus-6.0.5.jar:?]

at net.minecraftforge.eventbus.EventBusEngine.processClass(EventBusEngine.java:26) ~[eventbus-6.0.5.jar:?]

at net.minecraftforge.eventbus.service.ModLauncherService.processClassWithFlags(ModLauncherService.java:32) ~[eventbus-6.0.5.jar:6.0.5+6.0.5+master.eb8e549b]

at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50) ~[modlauncher-10.0.9.jar:?]

at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:113) ~[securejarhandler-2.1.10.jar:?]

at cpw.mods.cl.ModuleClassLoader.lambda$findClass$15(ModuleClassLoader.java:219) ~[securejarhandler-2.1.10.jar:?]

at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:229) ~[securejarhandler-2.1.10.jar:?]

at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:219) ~[securejarhandler-2.1.10.jar:?]

at java.lang.ClassLoader.loadClass(ClassLoader.java:637) ~[?:?]

at java.lang.Class.forName(Class.java:545) ~[?:?]

at net.minecraftforge.fml.earlydisplay.DisplayWindow.lambda$updateModuleReads$13(DisplayWindow.java:615) ~[fmlearlydisplay-1.20.1-47.4.0.jar:1.0]

at java.util.Optional.map(Optional.java:260) ~[?:?]

at net.minecraftforge.fml.earlydisplay.DisplayWindow.updateModuleReads(DisplayWindow.java:615) ~[fmlearlydisplay-1.20.1-47.4.0.jar:1.0]

at net.minecraftforge.fml.loading.ImmediateWindowHandler.acceptGameLayer(ImmediateWindowHandler.java:71) ~[fmlloader-1.20.1-47.4.0.jar:1.0]