Heya all, my friend just got minecraft forge and it seems to keep crashing.  It works fine for me, and he did exactly the same installation i did.  Here is the Error Log

 

2013-03-05 16:32:17 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.7.4.520 for Minecraft 1.4.7 loading

2013-03-05 16:32:17 [FINEST] [ForgeModLoader] All core mods are successfully located

2013-03-05 16:32:17 [FINEST] [ForgeModLoader] Discovering coremods

2013-03-05 16:32:17 [FINEST] [ForgeModLoader] Found library file argo-2.25.jar present and correct in lib dir

2013-03-05 16:32:17 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar

2013-03-05 16:32:17 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar

2013-03-05 16:32:26 [FINEST] [ForgeModLoader] Download complete

2013-03-05 16:32:26 [iNFO] [ForgeModLoader] Download complete

2013-03-05 16:32:26 [FINEST] [ForgeModLoader] Library file guava-12.0.1.jar was downloaded and verified successfully

2013-03-05 16:32:26 [FINEST] [ForgeModLoader] Found library file asm-all-4.0.jar present and correct in lib dir

2013-03-05 16:32:26 [FINEST] [ForgeModLoader] Found library file bcprov-jdk15on-147.jar present and correct in lib dir

2013-03-05 16:32:30 [iNFO] [sTDERR] Exception in thread "Thread-5" java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap

2013-03-05 16:32:30 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:175)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:242)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at net.minecraft.Launcher.replace(Launcher.java:136)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at net.minecraft.Launcher$1.run(Launcher.java:79)

2013-03-05 16:32:30 [iNFO] [sTDERR] Caused by: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.lang.Class.getDeclaredConstructors0(Native Method)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.lang.Class.getConstructor0(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.lang.Class.newInstance0(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.lang.Class.newInstance(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchClassLoader.registerTransformer(RelaunchClassLoader.java:77)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:238)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:155)

2013-03-05 16:32:30 [iNFO] [sTDERR]    ... 5 more

2013-03-05 16:32:30 [iNFO] [sTDERR] Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Multimap

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.net.URLClassLoader$1.run(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.net.URLClassLoader$1.run(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.security.AccessController.doPrivileged(Native Method)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.net.URLClassLoader.findClass(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:110)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.lang.ClassLoader.loadClass(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    at java.lang.ClassLoader.loadClass(Unknown Source)

2013-03-05 16:32:30 [iNFO] [sTDERR]    ... 13 more

 

 

 

Thanks everyone for your help

Read eaq.