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[1.13.2] Example mod fails to launch


DoctorLOGiQ

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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

 

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?

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

About Me

Spoiler

My Discord - Cadiboo#8887

My WebsiteCadiboo.github.io

My ModsCadiboo.github.io/projects

My TutorialsCadiboo.github.io/tutorials

Versions below 1.14.4 are no longer supported on this forum. Use the latest version to receive support.

When asking support remember to include all relevant log files (logs are found in .minecraft/logs/), code if applicable and screenshots if possible.

Only download mods from trusted sites like CurseForge (minecraft.curseforge.com). A list of bad sites can be found here, with more information available at stopmodreposts.org

Edit your own signature at www.minecraftforge.net/forum/settings/signature/ (Make sure to check its compatibility with the Dark Theme)

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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.

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

About Me

Spoiler

My Discord - Cadiboo#8887

My WebsiteCadiboo.github.io

My ModsCadiboo.github.io/projects

My TutorialsCadiboo.github.io/tutorials

Versions below 1.14.4 are no longer supported on this forum. Use the latest version to receive support.

When asking support remember to include all relevant log files (logs are found in .minecraft/logs/), code if applicable and screenshots if possible.

Only download mods from trusted sites like CurseForge (minecraft.curseforge.com). A list of bad sites can be found here, with more information available at stopmodreposts.org

Edit your own signature at www.minecraftforge.net/forum/settings/signature/ (Make sure to check its compatibility with the Dark Theme)

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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

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.

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

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.

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1 hour ago, diesieben07 said:

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

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.

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

  • Like 1

This is my Forum Signature, I am currently attempting to transform it into a small guide for fixing easier issues using spoiler blocks to keep things tidy.

 

As the most common issue I feel I should put this outside the main bulk:

The only official source for Forge is https://files.minecraftforge.net, and the only site I trust for getting mods is CurseForge.

If you use any site other than these, please take a look at the StopModReposts project and install their browser extension, I would also advise running a virus scan.

 

For players asking for assistance with Forge please expand the spoiler below and read the appropriate section(s) in its/their entirety.

Spoiler

Logs (Most issues require logs to diagnose):

Spoiler

Please post logs using one of the following sites (Thank you Lumber Wizard for the list):

https://gist.github.com/100MB Requires member (Free)

https://pastebin.com/: 512KB as guest, 10MB as Pro ($$$)

https://hastebin.com/: 400KB

Do NOT use sites like Mediafire, Dropbox, OneDrive, Google Drive, or a site that has a countdown before offering downloads.

 

What to provide:

...for Crashes and Runtime issues:

Minecraft 1.14.4 and newer:

Post debug.log

Older versions:

Please update...

 

...for Installer Issues:

Post your installer log, found in the same place you ran the installer

This log will be called either installer.log or named the same as the installer but with .log on the end

Note for Windows users:

Windows hides file extensions by default so the installer may appear without the .jar extension then when the .log is added the log will appear with the .jar extension

 

Where to get it:

Mojang Launcher: When using the Mojang launcher debug.log is found in .minecraft\logs.

 

Curse/Overwolf: If you are using the Curse Launcher, their configurations break Forge's log settings, fortunately there is an easier workaround than I originally thought, this works even with Curse's installation of the Minecraft launcher as long as it is not launched THROUGH Twitch:

Spoiler
  1. Make sure you have the correct version of Forge installed (some packs are heavily dependent on one specific build of Forge)
  2. Make a launcher profile targeting this version of Forge.
  3. Set the launcher profile's GameDir property to the pack's instance folder (not the instances folder, the folder that has the pack's name on it).
  4. Now launch the pack through that profile and follow the "Mojang Launcher" instructions above.

Video:

Spoiler

 

 

 

or alternately, 

 

Fallback ("No logs are generated"):

If you don't see logs generated in the usual place, provide the launcher_log.txt from .minecraft

 

Server Not Starting:

Spoiler

If your server does not start or a command window appears and immediately goes away, run the jar manually and provide the output.

 

Reporting Illegal/Inappropriate Adfocus Ads:

Spoiler

Get a screenshot of the URL bar or copy/paste the whole URL into a thread on the General Discussion board with a description of the Ad.

Lex will need the Ad ID contained in that URL to report it to Adfocus' support team.

 

Posting your mod as a GitHub Repo:

Spoiler

When you have an issue with your mod the most helpful thing you can do when asking for help is to provide your code to those helping you. The most convenient way to do this is via GitHub or another source control hub.

When setting up a GitHub Repo it might seem easy to just upload everything, however this method has the potential for mistakes that could lead to trouble later on, it is recommended to use a Git client or to get comfortable with the Git command line. The following instructions will use the Git Command Line and as such they assume you already have it installed and that you have created a repository.

 

  1. Open a command prompt (CMD, Powershell, Terminal, etc).
  2. Navigate to the folder you extracted Forge’s MDK to (the one that had all the licenses in).
  3. Run the following commands:
    1. git init
    2. git remote add origin [Your Repository's URL]
      • In the case of GitHub it should look like: https://GitHub.com/[Your Username]/[Repo Name].git
    3. git fetch
    4. git checkout --track origin/master
    5. git stage *
    6. git commit -m "[Your commit message]"
    7. git push
  4. Navigate to GitHub and you should now see most of the files.
    • note that it is intentional that some are not synced with GitHub and this is done with the (hidden) .gitignore file that Forge’s MDK has provided (hence the strictness on which folder git init is run from)
  5. Now you can share your GitHub link with those who you are asking for help.

[Workaround line, please ignore]

 

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