NoClassDefFoundError

Hey Guys,

I have a great problem with Forge. Everytime when i've installed Forge, this problem stopped my Minecraft:

2013-05-23 18:44:52 [iNFO] [ForgeModLoader] Forge Mod Loader version 5.2.12.710 for Minecraft 1.5.2 loading

2013-05-23 18:44:52 [iNFO] [ForgeModLoader] Java is Java HotSpot Client VM, version 1.7.0_21, running on Windows Vista:x86:6.0, installed at D:\Java

2013-05-23 18:44:52 [FINE] [ForgeModLoader] Java classpath at launch is C:\Users\Flo\Desktop\Minecraft Server\2. Welt\minecraft_server.jar

2013-05-23 18:44:52 [FINE] [ForgeModLoader] Java library path at launch is D:\Java\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\AMD APP\bin\x86;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\ATI Technologies\ATI.ACE\Core-Static;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\Common Files\Microsoft Shared\Windows Live;.

2013-05-23 18:44:52 [FINE] [ForgeModLoader] Enabling runtime deobfuscation

2013-05-23 18:44:52 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar

2013-05-23 18:44:53 [iNFO] [ForgeModLoader] Download complete

2013-05-23 18:44:53 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar

2013-05-23 18:45:07 [iNFO] [ForgeModLoader] Download complete

2013-05-23 18:45:07 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar

2013-05-23 18:45:09 [iNFO] [ForgeModLoader] Download complete

2013-05-23 18:45:09 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar

2013-05-23 18:45:30 [iNFO] [ForgeModLoader] Download complete

2013-05-23 18:45:30 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.2.zip

2013-05-23 18:45:33 [iNFO] [ForgeModLoader] Download complete

2013-05-23 18:45:33 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar

2013-05-23 18:46:09 [iNFO] [ForgeModLoader] Download complete

2013-05-23 18:46:09 [iNFO] [sTDERR] Exception in thread "main" java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/google/common/io/LineProcessor

2013-05-23 18:46:09 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:192)

2013-05-23 18:46:09 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchServer(FMLRelauncher.java:147)

2013-05-23 18:46:09 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.handleServerRelaunch(FMLRelauncher.java:45)

2013-05-23 18:46:09 [iNFO] [sTDERR] at net.minecraft.server.MinecraftServer.main(MinecraftServer.java:1365)

2013-05-23 18:46:09 [iNFO] [sTDERR] Caused by: java.lang.NoClassDefFoundError: com/google/common/io/LineProcessor

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.lang.Class.getDeclaredConstructors0(Native Method)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.lang.Class.getConstructor0(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.lang.Class.newInstance0(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.lang.Class.newInstance(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.registerTransformer(RelaunchClassLoader.java:122)

2013-05-23 18:46:09 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:271)

2013-05-23 18:46:09 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)

2013-05-23 18:46:09 [iNFO] [sTDERR] ... 3 more

2013-05-23 18:46:09 [iNFO] [sTDERR] Caused by: java.lang.ClassNotFoundException: com.google.common.io.LineProcessor

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.net.URLClassLoader$1.run(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.net.URLClassLoader$1.run(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.security.AccessController.doPrivileged(Native Method)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.net.URLClassLoader.findClass(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:160)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.lang.ClassLoader.loadClass(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] at java.lang.ClassLoader.loadClass(Unknown Source)

2013-05-23 18:46:09 [iNFO] [sTDERR] ... 11 more

I have installed Minecraft and Java new, but it doesn'd work. And when i want to start a bukkit server this problem comes, too. The mysterious thing is, i had installed Forge one time before and in the past it had work.

I hope anybody can help me! (and sorry for my utterly devastating english ^^)