Hello guys when i have installed minecraft forge i get this error:

2012-12-29 18:11:38 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.7.1.517 for Minecraft 1.4.7 loading

2012-12-29 18:11:38 [FINEST] [ForgeModLoader] All core mods are successfully located

2012-12-29 18:11:38 [FINEST] [ForgeModLoader] Discovering coremods

2012-12-29 18:11:38 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar

2012-12-29 18:11:38 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Download complete

2012-12-29 18:11:39 [iNFO] [ForgeModLoader] Download complete

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Library file argo-2.25.jar was downloaded and verified successfully

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar

2012-12-29 18:11:39 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Download complete

2012-12-29 18:11:39 [iNFO] [ForgeModLoader] Download complete

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Library file guava-12.0.1.jar was downloaded and verified successfully

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar

2012-12-29 18:11:39 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Download complete

2012-12-29 18:11:39 [iNFO] [ForgeModLoader] Download complete

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Library file asm-all-4.0.jar was downloaded and verified successfully

2012-12-29 18:11:39 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar

2012-12-29 18:11:39 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Download complete

2012-12-29 18:11:40 [iNFO] [ForgeModLoader] Download complete

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Library file bcprov-jdk15on-147.jar was downloaded and verified successfully

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Running coremod plugins

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin

2012-12-29 18:11:40 [sEVERE] [ForgeModLoader] FML appears to be missing any signature data. This is not a good thing

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Coremod plugin FMLCorePlugin run successfully

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Running coremod plugin FMLForgePlugin

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Coremod plugin FMLForgePlugin run successfully

2012-12-29 18:11:40 [FINEST] [ForgeModLoader] Validating minecraft

2012-12-29 18:11:40 [sEVERE] [ForgeModLoader] This version of FML is built for Minecraft 1.4.7, we have detected Minecraft 1.4.6 in your minecraft jar file

2012-12-29 18:11:40 [iNFO] [sTDOUT] A CRITICAL PROBLEM OCCURED INITIALIZING MINECRAFT - LIKELY YOU HAVE AN INCORRECT VERSION FOR THIS FML

2012-12-29 18:12:11 [iNFO] [sTDERR] Exception in thread "Thread-5" java.lang.RuntimeException: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:175)

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:242)

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212)

2012-12-29 18:12:11 [iNFO] [sTDERR] at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)

2012-12-29 18:12:11 [iNFO] [sTDERR] at net.minecraft.Launcher.replace(Launcher.java:136)

2012-12-29 18:12:11 [iNFO] [sTDERR] at net.minecraft.Launcher$1.run(Launcher.java:79)

2012-12-29 18:12:11 [iNFO] [sTDERR] Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:291)

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:155)

2012-12-29 18:12:11 [iNFO] [sTDERR] ... 5 more

2012-12-29 18:12:11 [iNFO] [sTDERR] Caused by: java.lang.reflect.InvocationTargetException

2012-12-29 18:12:11 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

2012-12-29 18:12:11 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

2012-12-29 18:12:11 [iNFO] [sTDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

2012-12-29 18:12:11 [iNFO] [sTDERR] at java.lang.reflect.Method.invoke(Method.java:601)

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:283)

2012-12-29 18:12:11 [iNFO] [sTDERR] ... 6 more

2012-12-29 18:12:11 [iNFO] [sTDERR] Caused by: cpw.mods.fml.common.LoaderException

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.common.Loader.<init>(Loader.java:175)

2012-12-29 18:12:11 [iNFO] [sTDERR] at cpw.mods.fml.common.Loader.instance(Loader.java:150)

2012-12-29 18:12:11 [iNFO] [sTDERR] ... 11 more

what should i do??

 

thank you

2012-12-29 18:11:40 [sEVERE] [ForgeModLoader] This version of FML is built for Minecraft 1.4.7, we have detected Minecraft 1.4.6 in your minecraft jar file

2012-12-29 18:11:40 [iNFO] [sTDOUT] A CRITICAL PROBLEM OCCURED INITIALIZING MINECRAFT - LIKELY YOU HAVE AN INCORRECT VERSION FOR THIS FML

 

You are trying to install Forge for 1.4.7 into a 1.4.6 jar.  Try using 1.4.7:

 

http://assets.minecraft.net/1_4_7/minecraft.jar