Firstly, when i unzipped forge and started installing, i got errors when decompiling caused by something with libraries.

But i believe, this method fixed them correctly.

 

Than I tried recompiling clear MC 1.6.2 and got a buch of errors:

 

== MCP 8.04 (data: 8.04, client: 1.6.2, server: 1.6.2) ==
"scalac" is not found on the PATH.  Scala files will not be recompiled
# found ff, ff patches, srgs, name csvs, doc csvs, param csvs, astyle, astyle co
nfig, rg, ss
== Recompiling client ==
> Cleaning bin
> Recompiling
'"C:\Program Files\Java\jdk1.7.0_17\bin\javac" -encoding UTF-8 -Xlint:-options -
deprecation -g -sourc...' failed : 1

== ERRORS FOUND in JAVA CODE ==

src\minecraft\net\minecraft\client\gui\LoadingScreenRenderer.java:52: error: run
ning is not public in Minecraft; cannot be accessed from outside package
        if (!this.mc.running)
                    ^

src\minecraft\net\minecraft\client\gui\LoadingScreenRenderer.java:77: error: run
ning is not public in Minecraft; cannot be accessed from outside package
        if (!this.mc.running)
                    ^

src\minecraft\net\minecraft\client\gui\LoadingScreenRenderer.java:98: error: run
ning is not public in Minecraft; cannot be accessed from outside package
        if (!this.mc.running)
                    ^

src\minecraft\net\minecraft\util\ChatMessageComponent.java:258: warning: non-var
args call of varargs method with inexact argument type for last parameter;
                var7.append(StatCollector.translateToLocalFormatted(this.field_1
11090_h, var13));

         ^

  cast to Object for a varargs call
  cast to Object[] for a non-varargs call and to suppress this warning
3 errors
1 warning
==================

== Recompiling server ==
> Cleaning bin
> Recompiling
Server side recompiling might be skipped, this is normal, do not complain to FML
/Forge team about server side.
- Done in 4.72 seconds
Для продолжения нажмите любую клавишу . . .

 

I opened Minecraft class and changed the visibility of running to public. Now it recompiles, but when i try to start, i get a damn i-can't-even-suppose-what-the-duck-can-it-be error.

 

== MCP 8.04 (data: 8.04, client: 1.6.2, server: 1.6.2) ==
"scalac" is not found on the PATH.  Scala files will not be recompiled
[01:38:07] Error: Could not find or load main class net.minecraft.launchwrapper.
Launch
'"C:\Program Files\Java\jdk1.7.0_17\bin\java" -Xincgc -Xms1024M -Xmx1024M -cp ".
.\bin\minecraft;..\sr...' failed : 1
FATAL ERROR
Traceback (most recent call last):
  File "runtime\startclient.py", line 42, in startclient
  File "E:\Minecraft\RoW1.6.2\mcp\runtime\commands.py", line 1362, in startclien
t
    self.runmc(forkcmd)
  File "E:\Minecraft\RoW1.6.2\mcp\runtime\commands.py", line 1402, in runmc
    raise CalledProcessError(process.returncode, forkcmd, output)
CalledProcessError: Command '"C:\Program Files\Java\jdk1.7.0_17\bin\java" -Xincg
c -Xms1024M -Xmx1024M -cp "..\bin\minecraft;..\src\minecraft;..\jars\versions\1.
6.2\1.6.2.jar;..\lib;..\lib\*;..\jars\libraries\net\java\jinput\jinput\2.0.5\jin
put-2.0.5.jar;..\jars\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1-nightly-201
30708-debug3\lwjgl-platform-2.9.1-nightly-20130708-debug3-natives-windows.jar;..
\jars\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1-nightly-20130708-debug3\lwjgl_u
til-2.9.1-nightly-20130708-debug3.jar;..\jars\libraries\com\paulscode\codecwav\2
0101023\codecwav-20101023.jar;..\jars\libraries\net\java\jinput\jinput-platform\
2.0.5\jinput-platform-2.0.5-natives-windows.jar;..\jars\libraries\argo\argo\2.25
_fixed\argo-2.25_fixed.jar;..\jars\libraries\com\paulscode\codecjorbis\20101023\
codecjorbis-20101023.jar;..\jars\libraries\org\bouncycastle\bcprov-jdk15on\1.47\
bcprov-jdk15on-1.47.jar;..\jars\libraries\org\apache\commons\commons-lang3\3.1\c
ommons-lang3-3.1.jar;..\jars\libraries\com\paulscode\soundsystem\20120107\sounds
ystem-20120107.jar;..\jars\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1-nightly-2013070
8-debug3\lwjgl-2.9.1-nightly-20130708-debug3.jar;..\jars\libraries\commons-io\co
mmons-io\2.4\commons-io-2.4.jar;..\jars\libraries\com\paulscode\libraryjavasound
\20101123\libraryjavasound-20101123.jar;..\jars\libraries\net\sf\jopt-simple\jop
t-simple\4.5\jopt-simple-4.5.jar;..\jars\libraries\com\paulscode\librarylwjglope
nal\20100824\librarylwjglopenal-20100824.jar;..\jars\libraries\com\google\guava\
guava\14.0\guava-14.0.jar;..\jars\libraries\com\google\code\gson\gson\2.2.2\gson
-2.2.2.jar;..\jars\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar" -Dja
va.library.path=..\jars\versions\1.6.2\1.6.2-natives net.minecraft.launchwrapper
.Launch --tweakClass cpw.mods.fml.common.launcher.FMLTweaker --version FML_DEV '
returned non-zero exit status 1
Для продолжения нажмите любую клавишу . . .

 

Grrr!!! 

 

Any ideas what i have to do?

i found an answer: the minecraftforge installation guide wrote this:

"You do not need to run any of the MCP scripts to decompile Minecraft and install Forge. Forge's install.sh will do it for you."(Minecraftforge)

unfortunately i don't know where the java codes are. when i start eclipse the 'src' ordner of minecraft is empty ?!?

I've tryed once more and now it's fine. Seems that it happened because i had no minecraft 1.6.2 installed itself, lol.

 

Java sources are in there usual place — forge/mcp/src if everything went good.

do you use the 64bit version of the JRE, JDK and eclipse?

No, i don't. But why?

i have found the fault.

i used the 1.6.2 recommended version and the eclipse directory was empty.

the latest version works fine