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Mod crashing when run in normal Minecraft, but not when run from IDE.


Trigonaut

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I am encountering an error on my modded item's onItemRightClick action, but only when the mod is built to a jar and run in normal minecraft.

This error doesn't happen when running from the project in IntelliJ. The item works as intended.

I am using the exact same forge version in both instances. (35.1.0)

What might be the cause for an error 'in the field' which isn't produced in the IDE?

Here is the class which causes the error:

public class HookshotItem extends Item implements IVanishable {
    public HookshotItem(Item.Properties builder) {
        super(builder);
    }

    public ActionResult<ItemStack> onItemRightClick(World worldIn, PlayerEntity playerIn, Hand handIn) {
        ItemStack itemstack = playerIn.getHeldItem(handIn);

        if (!worldIn.isRemote) {
            IHookshotIdentifier hookId = playerIn.getCapability(CapabilityHookshotIdentifier.HOOKSHOT_IDENTIFIER_CAPABILITY,null).orElse(null);
            HookshotHookEntity hookEntity = hookId.getHook();
            if(hookEntity == null){
                hookEntity = new HookshotHookEntity(ModEntityTypes.HOOKSHOT_HOOK.get(), playerIn, worldIn);
                worldIn.addEntity(hookEntity);
            }else{
                hookEntity.reelCable(0.3f);
            }

               }
        return ActionResult.func_233538_a_(itemstack, worldIn.isRemote());
    }

    public int getItemEnchantability() {
        return 0;
    }
}

and here is the portion of the log containing the crash:

[22Apr2021 22:44:42.940] [Server thread/ERROR] [net.minecraft.server.MinecraftServer/]: Encountered an unexpected exception
java.lang.ExceptionInInitializerError: null
	at com.trigonaut.mobilitymod.item.HookshotItem.func_77659_a(HookshotItem.java:32) ~[?:1.0]
	at net.minecraft.item.ItemStack.func_77957_a(ItemStack.java:214) ~[?:?]
	at net.minecraft.server.management.PlayerInteractionManager.func_187250_a(PlayerInteractionManager.java:287) ~[?:?]
	at net.minecraft.network.play.ServerPlayNetHandler.func_147346_a(ServerPlayNetHandler.java:982) ~[?:?]
	at net.minecraft.network.play.client.CPlayerTryUseItemPacket.func_148833_a(SourceFile:31) ~[?:?]
	at net.minecraft.network.play.client.CPlayerTryUseItemPacket.func_148833_a(SourceFile:9) ~[?:?]
	at net.minecraft.network.PacketThreadUtil.func_225383_a(SourceFile:21) ~[?:?]
	at net.minecraft.network.PacketThreadUtil$$Lambda$5774/1431595733.run(Unknown Source) ~[?:?]
	at net.minecraft.util.concurrent.TickDelayedTask.run(SourceFile:18) ~[?:?]
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213166_h(SourceFile:144) ~[?:?]
	at net.minecraft.util.concurrent.RecursiveEventLoop.func_213166_h(SourceFile:23) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServer.java:733) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServer.java:159) ~[?:?]
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213168_p(SourceFile:118) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213205_aW(MinecraftServer.java:716) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213168_p(MinecraftServer.java:710) ~[?:?]
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213160_bf(SourceFile:103) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213202_o(MinecraftServer.java:695) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServer.java:645) [?:?]
	at net.minecraft.server.MinecraftServer.lambda$startServer$0(MinecraftServer.java:232) [?:?]
	at net.minecraft.server.MinecraftServer$$Lambda$5064/1245825773.run(Unknown Source) [?:?]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51]
Caused by: net.minecraftforge.fml.common.ObfuscationReflectionHelper$UnableToFindMethodException: java.lang.NoSuchMethodException: net.minecraft.entity.Entity.setFlag(int, boolean)
	at net.minecraftforge.fml.common.ObfuscationReflectionHelper.findMethod(ObfuscationReflectionHelper.java:166) ~[?:?]
	at com.trigonaut.mobilitymod.entity.HookshotHookEntity.<clinit>(HookshotHookEntity.java:41) ~[?:1.0]
	... 22 more
Caused by: java.lang.NoSuchMethodException: net.minecraft.entity.Entity.setFlag(int, boolean)
	at java.lang.Class.getDeclaredMethod(Class.java:2130) ~[?:1.8.0_51]
	at net.minecraftforge.fml.common.ObfuscationReflectionHelper.findMethod(ObfuscationReflectionHelper.java:160) ~[?:?]
	at com.trigonaut.mobilitymod.entity.HookshotHookEntity.<clinit>(HookshotHookEntity.java:41) ~[?:1.0]
	... 22 more
[22Apr2021 22:44:42.945] [Server thread/FATAL] [net.minecraftforge.common.ForgeMod/]: Preparing crash report with UUID a6fd1be1-e806-4d7e-8d84-ca7c4250b981

It looks like something to do with reflection, but I haven't used any reflection anywhere in this mod.

Edited by Trigonaut
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6 hours ago, diesieben07 said:

That is not the class mentioned in the log:

Well it was, but only as the class that encountered a null as a result of an underlying error (hence the Caused By).

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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