I'm in the process of updating my mod to newer minecraft versions. Part of the mod is interacting with the mod wthit (the newest fork of waila), so of cause I added the mod api as compileOnly dependency while the actual mod itself is a runtimeOnly dependency. (You can see the dependency part of my build.gradle file here and the properties file here). This set up did work fine up to minecraft version 1.17.1, but since the 1.18.2 and 1.19.3 version I run into exception when running the mod with eclipse.

Exception in thread "main" java.lang.module.ResolutionException: Modules wthit and wthit_api export package mcp.mobius.waila.api.__internal__ to module minecraft
	at java.base/java.lang.module.Resolver.resolveFail(Resolver.java:901)
	at java.base/java.lang.module.Resolver.failTwoSuppliers(Resolver.java:815)
	at java.base/java.lang.module.Resolver.checkExportSuppliers(Resolver.java:736)
	at java.base/java.lang.module.Resolver.finish(Resolver.java:380)
	at java.base/java.lang.module.Configuration.<init>(Configuration.java:140)
	at java.base/java.lang.module.Configuration.resolveAndBind(Configuration.java:494)
	at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.ModuleLayerHandler.buildLayer(ModuleLayerHandler.java:75)
	at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.TransformationServicesHandler.buildTransformingClassLoader(TransformationServicesHandler.java:60)
	at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.Launcher.run(Launcher.java:104)
	at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.Launcher.main(Launcher.java:77)
	at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26)
	at MC-BOOTSTRAP/[email protected]/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23)
	at [email protected]/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:141)

I can build the mod jar just fine and test it by running it directly with forge launcher (aka adding it to custom modpack), but debugging like this is annoying af. 

So is my gradle set up incorrectly or is the wthit dependency faulty? Anyhow what can I do to fix it?

Edited April 25, 20232 yr by Tavi007

Quote

I run into exception when running the mod with eclipse.

If you are running it inside eclipse, it doesn't use the gradle build directly.

You need to (re)generate the eclipse run configurations from the gradle build.

 

Also their wiki says you need to use the "badpackets" mod as well: https://docs.bai.lol/wthit/plugin/getting_started/

 

But, I suggest you contact the mod author about their mod. These are the forge support forums.

I always run 'gradlew genEclipseRuns --refresh-dependencies' and 'gradlew eclipse' to create a working eclipse project. But you might be right, that I also need badpackets, since I can't find it in the Referenced Libraries.

Quote

But, I suggest you contact the mod author about their mod. These are the forge support forums.

Well i was not sure, what causes the error and this forum is the best place to get any advice. So thanks for the hint anyway

So after a lot of trial and error and using google i actually found a solution here:
https://github.com/SpongePowered/MixinGradle/issues/40

Apparently it's a known problem and for now the best work around is to apply the plugin in a certain order:

1. apply plugin: 'net.minecraftforge.gradle'
2. apply plugin: 'org.spongepowered.mixin'
3. apply plugin: 'eclipse'

At least that worked for me