FabricItemGroupBuilder.build errors out
PsikoBlock opened this issue ยท 5 comments
This happens on startup with SimpleVoidWorld and the ItemGroupMod test mod. Linux with Java 1.8 (Oracle), trying to run the mod out of IntelliJ IDEA.
[13:47:56] [main/INFO]: Loading for game Minecraft 1.14
[13:47:56] [ForkJoinPool-1-worker-2/WARN]: Mod ID fabric uses outdated schema version: 0 < 1
[13:47:56] [main/INFO]: [FabricLoader] Loading 3 mods: [email protected]+build.127, [email protected]+build.141, [email protected]
[13:47:56] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.7.11 Source=file:/home/psiko/.gradle/caches/modules-2/files-2.1/net.fabricmc/sponge-mixin/0.7.11.30/12878b7fa8bcc30844de4fa9e09d95c36b8c359b/sponge-mixin-0.7.11.30.jar Service=Knot/Fabric Env=CLIENT
[13:47:56] [main/INFO]: Loaded Fabric development mappings for mixin remapper!
[13:47:56] [main/INFO]: Compatibility level set to JAVA_8
[13:47:56] [main/WARN]: Mixin config net.fabricmc.fabric.mixins.client.json does not specify "minVersion" property
[13:47:56] [main/WARN]: Mixin config net.fabricmc.fabric.mixins.common.json does not specify "minVersion" property
[13:47:56] [main/INFO]: Remapping refMap net.fabricmc.fabric.refmap.json using remapper chain
[13:47:56] [main/INFO]: Remapping refMap net.fabricmc.fabric.refmap.json using remapper chain
[13:47:57] [main/INFO]: Setting user: Player307
---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.
Time: 04.05.19 13:47
Description: Initializing game
java.lang.RuntimeException: Could not execute entrypoint stage 'main' due to errors!
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:45)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient.start(EntrypointClient.java:34)
at net.minecraft.client.MinecraftClient.init(MinecraftClient.java)
at net.minecraft.client.MinecraftClient.start(MinecraftClient.java:395)
at net.minecraft.client.main.Main.main(Main.java:154)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:127)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)
Suppressed: java.lang.ClassCastException: net.minecraft.item.ItemGroup$1 cannot be cast to net.fabricmc.fabric.impl.itemgroup.ItemGroupExtensions
at net.fabricmc.fabric.api.client.itemgroup.FabricItemGroupBuilder.build(FabricItemGroupBuilder.java:106)
at net.fabricmc.fabric.api.client.itemgroup.FabricItemGroupBuilder.build(FabricItemGroupBuilder.java:96)
at net.fabricmc.example.ExampleMod.onInitialize(ExampleMod.java:34)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.lambda$logErrors$0(EntrypointUtils.java:38)
at java.util.ArrayList.forEach(ArrayList.java:1257)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:36)
... 11 more
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Client thread
Stacktrace:
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:45)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient.start(EntrypointClient.java:34)
at net.minecraft.client.MinecraftClient.init(MinecraftClient.java)
-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.MinecraftClient.start(MinecraftClient.java:395)
at net.minecraft.client.main.Main.main(Main.java:154)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:127)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)
-- System Details --
Details:
Minecraft Version: 1.14
Operating System: Linux (amd64) version 5.0.7-gentoo
Java Version: 1.8.0_202, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 337872912 bytes (322 MB) / 813694976 bytes (776 MB) up to 3733979136 bytes (3561 MB)
JVM Flags: 0 total;
Fabric Mods:
fabric: 0.2.7+build.127
fabricloader: 0.4.6+build.141
modid: 1.0.0
Launched Version: Fabric
LWJGL: 3.2.1 build 12
OpenGL: NO CONTEXT
GL Caps:
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fabric'
Type: Client (map_client.txt)
Resource Packs: ~~ERROR~~ NullPointerException: null
Current Language: ~~ERROR~~ NullPointerException: null
CPU: <unknown>
Process finished with exit code 255
I've had this a few times too... For me I copied all my code to a fresh project and it stopped making that error, however I tested with Dmixin.debug=true in the workspace with this issue and it seemed as if all of fabrics mixins were being applied properly - including the item group extensions one. Worth trying a fresh workspace, however it's good to see I'm not the only one whose had this.
How did you set up a fresh project? I pretty much followed the guide at https://fabricmc.net/wiki/tutorial:setup with the newest versions of Fabric, mappings and the loader and running gradlew idea. I opened the resulting ipr file with IDEA and imported the gradle config, which created three modules. Then I took out the mixins file from fabric.mod.json, deleted it and the src/mixin folder. Finally, I pasted the code from ItemGroupMod.java into ExampleMod.java, changed the package and class name and clicked Run > Minecraft Client. I selected the net.fabricmc.itemgroup.main package (folder was called itemgroup). This produced this error.
