Registry example throws "Cannot invoke "net.minecraftforge.fml.ModList.getModContainerById(String)" because the return value of "net.minecraftforge.fml.ModList.get()" is null"

[IMB11]

When running forge client, Cannot invoke "net.minecraftforge.fml.ModList.getModContainerById(String)" because the return value of "net.minecraftforge.fml.ModList.get()" is null is thrown as an error

[IMB11]

Exception in thread "main" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:32)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.Launcher.run(Launcher.java:106)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.Launcher.main(Launcher.java:77)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23)
	at cpw.mods.bootstraplauncher@1.1.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141)
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
Caused by: java.lang.reflect.InvocationTargetException

	at java.base/java.lang.reflect.Method.invoke(Method.java:568)
	at MC-BOOTSTRAP/fmlloader@1.19.2-43.1.3/net.minecraftforge.fml.loading.targets.ForgeClientUserdevLaunchHandler.lambda$launchService$0(ForgeClientUserdevLaunchHandler.java:25)
	at MC-BOOTSTRAP/cpw.mods.modlauncher@10.0.8/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30)
	... 7 more
Caused by: java.lang.RuntimeException: java.lang.ExceptionInInitializerError
	at MC-BOOTSTRAP/fmlloader@1.19.2-43.1.3/net.minecraftforge.fml.loading.BackgroundWaiter.runAndTick(BackgroundWaiter.java:29)
Caused by: java.lang.RuntimeException: java.lang.ExceptionInInitializerError

	at TRANSFORMER/minecraft@1.19.2/net.minecraft.client.main.Main.run(Main.java:145)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.client.main.Main.main(Main.java:51)
	... 13 more
Caused by: java.lang.ExceptionInInitializerError
Caused by: java.lang.ExceptionInInitializerError

	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.item.AxeItem.handler$zza000$addStrippables(AxeItem.java:521)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.item.AxeItem.<clinit>(AxeItem.java:24)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.item.Items.<clinit>(Items.java:757)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.item.Item.byBlock(Item.java:82)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.level.block.Block.asItem(Block.java:476)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.level.levelgen.flat.FlatLevelGeneratorPresets$Bootstrap.register(FlatLevelGeneratorPresets.java:67)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.level.levelgen.flat.FlatLevelGeneratorPresets$Bootstrap.run(FlatLevelGeneratorPresets.java:71)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.world.level.levelgen.flat.FlatLevelGeneratorPresets.bootstrap(FlatLevelGeneratorPresets.java:33)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.data.BuiltinRegistries.lambda$internalRegister$2(BuiltinRegistries.java:87)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.data.BuiltinRegistries.lambda$static$3(BuiltinRegistries.java:114)
	at java.base/java.util.LinkedHashMap.forEach(LinkedHashMap.java:721)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.data.BuiltinRegistries.<clinit>(BuiltinRegistries.java:113)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.core.Registry.<clinit>(Registry.java:665)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.server.Bootstrap.bootStrap(Bootstrap.java:43)
	at TRANSFORMER/minecraft@1.19.2/net.minecraft.client.main.Main.lambda$run$0(Main.java:145)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraftforge.fml.ModList.getModContainerById(String)" because the return value of "net.minecraftforge.fml.ModList.get()" is null
	at LAYER PLUGIN/fmlcore@1.19.2-43.1.3/net.minecraftforge.fml.ModLoadingContext.getActiveContainer(ModLoadingContext.java:31)
Caused by: java.lang.NullPointerException: Cannot invoke "net.minecraftforge.fml.ModList.getModContainerById(String)" because the return value of "net.minecraftforge.fml.ModList.get()" is null

	at TRANSFORMER/deeperdarker@0.0NONE/com.kyanite.deeperdarker.platform.ForgeRegistrationFactory.create(ForgeRegistrationFactory.java:21)
	at TRANSFORMER/deeperdarker@0.0NONE/com.kyanite.deeperdarker.platform.RegistrationProvider$Factory.create(RegistrationProvider.java:109)
	at TRANSFORMER/deeperdarker@0.0NONE/com.kyanite.deeperdarker.platform.RegistrationProvider.get(RegistrationProvider.java:50)
	at TRANSFORMER/deeperdarker@0.0NONE/com.kyanite.deeperdarker.registry.blocks.DDBlocks.<clinit>(DDBlocks.java:31)
	... 20 more

[IMB11]

https://github.com/mineblock11/DeeperAndDarkerML

[jaredlll08]

Report to Forge, as far as MultiLoader is concerned, everything is working fine, your Common code is being pulled into the Forge code before it is built, the game runs using both Common and Forge code, and anything that happens after that (while the game is running) is usually an issue with the loaders themselves, or with your code specifically.