[Crash]: Exit Code: 0 [NOT UNIVERSITY, FTB APP BUG, TRY USING MULTIMC]

[jiru6552]

• What version of University: 1.0.0

• Have you added any mods: No

• If yes, which mods:

• Crash report link (preferably Pastebin etc, not the file): latest.log

• What were you doing when the crash happened: 1) I downloaded the FTB launcher. 2) I downloaded FTB University. 3) I launched FTB university. 4) Pressed start. 5) Exit Code: 0.

• Any other details: I've tried allocating more memory to the pack (~8GB) same results. I've updated my java, same results. I even tried to download the forge version its running on and replaced it, same results.

[aaronhowser1]

java.lang.RuntimeException: java.lang.RuntimeException: Patcher expecting non-empty class data file for net.minecraft.crash.CrashReport$1, but received empty, your vanilla jar may be corrupt.
    at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:169) ~[forge-1.12.2-14.23.5.2847.jar:?]
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?]
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
Caused by: java.lang.RuntimeException: Patcher expecting non-empty class data file for net.minecraft.crash.CrashReport$1, but received empty, your vanilla jar may be corrupt.
    at net.minecraftforge.fml.common.patcher.ClassPatchManager.applyPatch(ClassPatchManager.java:114) ~[forge-1.12.2-14.23.5.2847.jar:?]
    at net.minecraftforge.fml.common.patcher.ClassPatchManager.getPatchedResource(ClassPatchManager.java:77) ~[forge-1.12.2-14.23.5.2847.jar:?]
    at net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper.getFieldType(FMLDeobfuscatingRemapper.java:219) ~[forge-1.12.2-14.23.5.2847.jar:?]
    at net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper.parseField(FMLDeobfuscatingRemapper.java:192) ~[forge-1.12.2-14.23.5.2847.jar:?]
    at net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper.setup(FMLDeobfuscatingRemapper.java:161) ~[forge-1.12.2-14.23.5.2847.jar:?]
    at net.minecraftforge.fml.common.asm.FMLSanityChecker.injectData(FMLSanityChecker.java:187) ~[forge-1.12.2-14.23.5.2847.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper.injectIntoClassLoader(CoreModManager.java:164) ~[forge-1.12.2-14.23.5.2847.jar:?]
    ... 2 more

Very strange. Try deleting the modpack (and clearing the launcher cache) and trying again.

[jiru6552]

I did as you said, I still got exit code: 0, I then tried deleting and reinstalling the FTB launcher, same issue, and the I did what you said one more time, same problem. latest.log Just checking though, when you said to clear the launcher cache, did you mean to press "refresh cache" in the FTB launcher's settings page at the bottom (what I did), or is there something else I'm supposed to do.

[aaronhowser1]

[jiru6552]

I tested a few other packs on the launcher. I'm getting this problem only for all the 1.12.2 packs.

[jiru6552]

I'm able to run 1.12.2 mods on other launchers (twitch and technic) so I'm not sure why this is specific to the FTB launcher

[jiru6552]

Ok, I got it to work...Kinda. What I did is I used the Twitch launcher, created a new custom profile set to forge 14.23.5.2847 for 1.12.2. I then open the folder it created, deleted everything inside, then dumped the contents of the FTB University instance folder from the FTB launcher into it. I then Just launched FTB University from the Twitch launcher. So what I'm getting from this is that there is something with the FTB launcher and/or my computer in which 1.12.2 packs from the launcher will not cooperate with me.