i know what does it mean, but how i can fix this? (modding)

    im running mcp decompiler on 1.4.7 version jar with forge and ic2. I get this error, how i can fix this?


    Unrecoverable error during obfuscation, see log file for details.
    13:30:05 -
    13:30:05 - ERROR: duplicate entry: net/minecraft/client/gui/achievement/GuiAchievements.class
    13:30:05 - '"C:\Program Files\Java\jdk1.7.0_17\bin\java" -cp "runtime\bin\retroguard.jar;lib;lib\*;jars\bin\mine...' failed : 1
    13:30:05 -
    13:30:05 - == ERRORS FOUND ==
    13:30:05 -
    13:30:05 - Unrecoverable error during obfuscation, see log file for details.
    13:30:05 - ERROR: duplicate entry: net/minecraft/client/gui/achievement/GuiAchievements.class
    13:30:05 - ==================
    13:30:05 -
    13:30:05 - Decompile failed

    It appears you are attempting to decompile IC2, if you followed the instructions on GregoriusT's profile page, navigate to your "src" folder, then the "minecraft" folder, then the "ic2" folder, and finally the "common" folder.

    Is the answer to this question no?


    Quote

    Hey don't take it so hard. Ignorance is part of this generation it seems. -the wise words of XFmax-o-l

    i guess, i 'll folloed those instructions. simply i unpack ic2 mod in minecraft.jar /bin folder, and after that i cpy bin and res folder to the mcp jars folder and i try to decompile. ... it sems some class is duplicate but... xD i dont know where is it.

    T.T ... WTFFFFFF!!!


    13:32:09 - ERROR: duplicate entry: net/minecraft/src/GuiAchievements.class
    13:32:09 - '"C:\Program Files\Java\jdk1.7.0_17\bin\java" -cp "runtime\bin\retroguard.jar;lib;lib\*;jars\bin\mine...' failed : 1
    13:32:09 -
    13:32:09 - == ERRORS FOUND ==
    13:32:09 -
    13:32:09 - Unrecoverable error during obfuscation, see log file for details.
    13:32:09 - ERROR: duplicate entry: net/minecraft/src/GuiAchievements.class
    13:32:09 - ==================
    13:32:09 -
    13:32:09 - Decompile failed

    13:26:12 - # Warning: unknown class Side in cpw/mods/fml/relauncher
    13:26:12 - # Warning: unknown class SideOnly in cpw/mods/fml/relauncher
    13:26:12 - Unrecoverable error during obfuscation, see log file for details.
    13:26:12 -
    13:26:12 - RetroGuard error: COM.rl.obf.classfile.ClassFileException: ClassNotFound pl
    13:26:12 - '"C:\Program Files\Java\jdk1.7.0_17\bin\java" -cp "runtime\bin\retroguard.jar;lib;lib\*;jars\minecraf...' failed : 1
    13:26:12 -
    13:26:12 - == ERRORS FOUND ==
    13:26:12 -
    13:26:12 - Unrecoverable error during obfuscation, see log file for details.
    13:26:12 - RetroGuard error: COM.rl.obf.classfile.ClassFileException: ClassNotFound pl
    13:26:12 - ==================
    13:26:12 -
    13:26:12 - Decompile failed


    finally it doesn't work

    when i open eclipse i get a lot of errors, some of them i can fix simply change declarations to public in some classes, but other references doesn't exist

    it works because aux is a reserved name on windows platforms, so if you try to use it, it get's angry :rolleyes:
    as for the errors, you'll have to fix em yourself if you can, there are too many to make a tut for it

    there was an aux.class and other one _aux.class .. they are the same, when decompiler deobfuscate their names are a duplicate

    any way i get same error. How i can fix this? or it doesnt care for modding?


    13:26:12 - # Warning: unknown class Side in cpw/mods/fml/relauncher


    13:26:12 - # Warning: unknown class SideOnly in cpw/mods/fml/relauncher


    13:26:12 - Unrecoverable error during obfuscation, see log file for details.


    13:26:12 -


    13:26:12 - RetroGuard error: COM.rl.obf.classfile.ClassFileException: ClassNotFound pl


    13:26:12 - '"C:\Program Files\Java\jdk1.7.0_17\bin\java" -cp "runtime\bin\retroguard.jar;lib;lib\*;jars\minecraf...' failed : 1


    13:26:12 -


    13:26:12 - == ERRORS FOUND ==


    13:26:12 -


    13:26:12 - Unrecoverable error during obfuscation, see log file for details.


    13:26:12 - RetroGuard error: COM.rl.obf.classfile.ClassFileException: ClassNotFound pl


    13:26:12 - ==================


    13:26:12 -


    13:26:12 - Decompile failed