[1.13.2] Example mod fails to launch

[DoctorLOGiQ]

Okay, so after figuring out how to set up a project with 1.13.2 so I can port my mod as planned, I am now finding that the example mod won't even launch, and crashes with an exception:

 

  Quote

Exception in thread "main" [13:14:15.340] [pool-2-thread-1/DEBUG] [ne.mi.fm.lo.mo.Scanner/SCAN]: Scanning Mod File: C:\Users\LOGiQ\.gradle\caches\forge_gradle\minecraft_user_repo\net\minecraftforge\forge\1.13.2-25.0.10_mapped_snapshot_20180921-1.13\forge-1.13.2-25.0.10_mapped_snapshot_20180921-1.13.jar path /net/minecraft/client/renderer/model/VariantList.class
java.lang.RuntimeException: java.lang.UnsupportedOperationException
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:21)[13:14:15.341] [pool-2-thread-1/DEBUG] [ne.mi.fm.lo.mo.Scanner/SCAN]: Scanning Mod File: C:\Users\LOGiQ\.gradle\caches\forge_gradle\minecraft_user_repo\net\minecraftforge\forge\1.13.2-25.0.10_mapped_snapshot_20180921-1.13\forge-1.13.2-25.0.10_mapped_snapshot_20180921-1.13.jar path /net/minecraft/client/renderer/model/ItemCameraTransforms.class

    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:35)
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53)
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:58)
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:44)
    at net.minecraftforge.userdev.UserdevLauncher.main(UserdevLauncher.java:77)
Caused by: java.lang.UnsupportedOperationException
    at org.objectweb.asm.ClassVisitor.visitNestMemberExperimental(ClassVisitor.java:248)
    at org.objectweb.asm.ClassReader.accept(ClassReader.java:651)
    at org.objectweb.asm.ClassReader.accept(ClassReader.java:391)
    at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:65)
    at cpw.mods.modlauncher.TransformerClassWriter.access$100(TransformerClassWriter.java:17)
    at cpw.mods.modlauncher.TransformerClassWriter$SuperCollectingVisitor.visit(TransformerClassWriter.java:111)
    at org.objectweb.asm.tree.ClassNode.accept(ClassNode.java:368)
    at cpw.mods.modlauncher.TransformerClassWriter.computeHierarchy(TransformerClassWriter.java:56)
    at cpw.mods.modlauncher.TransformerClassWriter.<init>(TransformerClassWriter.java:30)
    at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:73)
    at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.findClass(TransformingClassLoader.java:214)
    at cpw.mods.modlauncher.TransformingClassLoader.loadClass(TransformingClassLoader.java:76)
    at cpw.mods.modlauncher.TransformingClassLoader$DelegatedClassLoader.loadClass(TransformingClassLoader.java:169)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    at java.base/java.lang.Class.forName0(Native Method)
    at java.base/java.lang.Class.forName(Class.java:398)
    at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:55)
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:19)
    ... 5 more

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If the example mod won't work, then how is an *actual* mod going to work?

I have tried cleaning my .gradle folder and deleting the project folder and re-extracting the .ZIP to try again, each time to no avail.

 

What do I have to do to get this to work?

[Cadiboo]

Make sure you've (re)imported the project twice. How are you running user dev and what IDE are you using?

[DoctorLOGiQ]

Oh, you have to re-import the project? I'm using IntelliJ IDEA. What do you mean by "running user dev"? I've done things the same way I usually do, except without the need for the deprecated setupDecompWorkspace command, of course. When asked to import the Gradle project I told it to use auto-import, since I don't need it asking me for permission each time, and told it not to create separate modules per source set, since that breaks things. The project set up correctly, and it seems the example code (which I have not modified yet, in any way) compiles, it just does not let the game run.

[DoctorLOGiQ]

This is still unresolved. It is also worth noting that my mod development environment works for previous versions of Minecraft Forge, so whatever this issue is, it's 1.13-related. This is now holding me back completely.

[Cadiboo]

Can you post your updated log? Also make sure that you’ve re-run the gen[IDE]runs task. 

[DoctorLOGiQ]

Mkay so... you're going to hate me, but trust me, none of this is my fault.

After rinse-and-repeat clearing all files, re-extracting the mdk zip, doing the gradle command, importing the project and testing... a programmer's worst nightmare occurred: it just started working. I did not change anything, I don't know why it now works and why it didn't before, but... well, it's working now.

 

The Forge examplemod included in the ZIP has an incorrect version number, causing it to error during initialization, but that was an easy enough fix.

 

  Quote

re-run the gen[IDE]runs task

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This would not have changed anything, the tasks were generated first time each time, that wasn't part of the problem. 

 

The exact process I followed over and over and over (and over!) again is:

1. Extract MDK ZIP
2. Rename the folder (non important)
3. Open Cmder, 'cd' to the folder
4. Run 'gradlew eclipse'
5. Wait
6. Wait some more, until the task completes
7. Close Cmder, open IDEA
8. Open project, browse to and select the folder
9. When prompted, 'import gradle project'
10. Wait for indexing and project sync to complete
11. Run Gradle task 'genIntellijRuns'
12. Rename tasks because "runClient" and "runServer" are not very eyecandy-friendly (non important)
13. Select the module under 'use classpath of module' for both server and client run tasks
14. Alter mods.toml file to support version 1.13.2 instead of 1.13
15. Run

This task has been the same each time. "Magical fix is magical" *DING!*

I'm sorry I can't say what happened here, if only I knew. But there you go, I suppose something was missing and now isn't. I am still getting floods of errors about sound files being missing, however.

 

Mods: I don't know if this should be classed as resolved, on the one hand my development environment is (minimally) working, but on the other hand I do not know how or why the issue fixed itself.

[DoctorLOGiQ]

  Quote

Why are you running gradlew eclipse when you are using Intellij?

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Because there is no 'gradlew idea' command in 1.13.2 as far as I can see, certainly not when using the tasks command to list available tasks, as per the prompt.

 

As for my way of doing things, it's how I've always done it, and works just fine in most cases. Either way, it is now somewhat working, and that's good enough for me.

[DoctorLOGiQ]

  On 2/21/2019 at 4:14 PM, diesieben07 said:

... and? gradlew idea has never been necessary. Even before 1.13.2.

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And... you asked me why I'm not using the command.. now you're asking why I'm not using it. Make your mind up! I should've known asking for help on here would result in this whole "Why are you doing this your way? You must do it my way. Your way is wrong, my way is right." line of questioning... happens every time. The project is set up and working (mostly), and with ALL of the project setups in the past, the steps I have taken have worked just fine.

 

I am no longer going to monitor this thread.

[DaemonUmbra]

It’s not “You must do it my way” it’s “this is how this tool is designed to be used”.