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Hangs on setting up Minecraft environment (MC 1.5.2)

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Minecraft version 1.5.2

OS: Ubuntu 12.04

Java: OpenJDK version 1.7.0_21


Downloaded the latest forge, which seems to be build 1.5.2-


Appended all files in that archive to ~/.minecraft/bin/minecraft.jar


Deleted the META-INF/MOJANG* files in ~/.minecraft/bin/minecraft.jar


Upon starting Minecraft after that then It hangs at 0% with the "setting up Minecraft environment"-window.


Launching from terminal I get this error-output:


Exception in thread "Thread-3" java.lang.VerifyError: (class: net/minecraft/client/Minecraft, method: O signature: ()V) Incompatible argument to function
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2451)
at java.lang.Class.getDeclaredMethod(Class.java:1954)
at cpw.mods.fml.relauncher.ReflectionHelper.findMethod(ReflectionHelper.java:170)
at cpw.mods.fml.relauncher.FMLRelauncher.computeExistingClientHome(FMLRelauncher.java:212)
at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:258)
at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:229)
at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)
at net.minecraft.Launcher.replace(Launcher.java:136)
at net.minecraft.Launcher$1.run(Launcher.java:79)



Sorry if I have missed anything, never used forge before, until today. Joined this forum to report this, let me know if there is anything else I can do.

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oh is it not working? It works in 1.4

if you'd like you can get your footing in 1.4 and by the time 1.6 comes out they'll have fixed 1.5 and released 1.6.

The forge team moves pretty quick

Communication is a vital tool, in the game industry you won't go anywhere without it. People are either going to learn to talk, or move on.

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Not exactly sure why you're getitng this error besides you trying to install 1.5.2 on 1.5.1 I just tried installing that build onto 1.5.2 and it worked flawlessly..

I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
Consider supporting the team on Patreon

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