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I keep getting errors when i try to install forge for 1.5 and 1.5.1 I have no mods install and I get This error


2013-03-29 09:16:36 [INFO] [ForgeModLoader] Forge Mod Loader version 5.0.24.582 for Minecraft 1.5 loading
2013-03-29 09:16:36 [FINE] [ForgeModLoader] Enabling runtime deobfuscation
2013-03-29 09:16:36 [FINEST] [ForgeModLoader] All core mods are successfully located
2013-03-29 09:16:36 [FINEST] [ForgeModLoader] Discovering coremods
2013-03-29 09:16:36 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar
2013-03-29 09:16:36 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar
2013-03-29 09:16:37 [FINEST] [ForgeModLoader] Download complete
2013-03-29 09:16:37 [INFO] [ForgeModLoader] Download complete
2013-03-29 09:16:37 [FINEST] [ForgeModLoader] Library file argo-small-3.2.jar was downloaded and verified successfully
2013-03-29 09:16:37 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar
2013-03-29 09:16:37 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar
2013-03-29 09:16:45 [FINEST] [ForgeModLoader] Download complete
2013-03-29 09:16:45 [INFO] [ForgeModLoader] Download complete
2013-03-29 09:16:45 [FINEST] [ForgeModLoader] Library file guava-14.0-rc3.jar was downloaded and verified successfully
2013-03-29 09:16:45 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar
2013-03-29 09:16:45 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar
2013-03-29 09:16:45 [FINEST] [ForgeModLoader] Download complete
2013-03-29 09:16:45 [INFO] [ForgeModLoader] Download complete
2013-03-29 09:16:45 [FINEST] [ForgeModLoader] Library file asm-all-4.1.jar was downloaded and verified successfully
2013-03-29 09:16:45 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
2013-03-29 09:16:45 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
2013-03-29 09:17:14 [FINEST] [ForgeModLoader] Download complete
2013-03-29 09:17:14 [INFO] [ForgeModLoader] Download complete
2013-03-29 09:17:14 [FINEST] [ForgeModLoader] Library file bcprov-jdk15on-148.jar was downloaded and verified successfully
2013-03-29 09:17:14 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.zip
2013-03-29 09:17:14 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.zip
2013-03-29 09:17:25 [FINEST] [ForgeModLoader] Download complete
2013-03-29 09:17:25 [INFO] [ForgeModLoader] Download complete
2013-03-29 09:17:25 [FINEST] [ForgeModLoader] Library file deobfuscation_data_1.5.zip was downloaded and verified successfully
2013-03-29 09:17:25 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar
2013-03-29 09:17:25 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar
2013-03-29 09:17:38 [FINEST] [ForgeModLoader] Download complete
2013-03-29 09:17:38 [INFO] [ForgeModLoader] Download complete
2013-03-29 09:17:38 [FINEST] [ForgeModLoader] Library file scala-library.jar was downloaded and verified successfully
2013-03-29 09:18:37 [INFO] [STDERR] Exception in thread "Thread-5" java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap
2013-03-29 09:18:37 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:189)
2013-03-29 09:18:37 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:256)
2013-03-29 09:18:37 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:226)
2013-03-29 09:18:37 [INFO] [STDERR] at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)
2013-03-29 09:18:37 [INFO] [STDERR] at net.minecraft.Launcher.replace(Launcher.java:143)
2013-03-29 09:18:37 [INFO] [STDERR] at net.minecraft.Launcher$1.run(Launcher.java:87)
2013-03-29 09:18:37 [INFO] [STDERR] Caused by: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap
2013-03-29 09:18:37 [INFO] [STDERR] at java.lang.Class.getDeclaredConstructors0(Native Method)
2013-03-29 09:18:37 [INFO] [STDERR] at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at java.lang.Class.getConstructor0(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at java.lang.Class.newInstance0(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at java.lang.Class.newInstance(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.registerTransformer(RelaunchClassLoader.java:95)
2013-03-29 09:18:37 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:270)
2013-03-29 09:18:37 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:169)
2013-03-29 09:18:37 [INFO] [STDERR] ... 5 more
2013-03-29 09:18:37 [INFO] [STDERR] Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Multimap
2013-03-29 09:18:37 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at java.security.AccessController.doPrivileged(Native Method)
2013-03-29 09:18:37 [INFO] [STDERR] at java.net.URLClassLoader.findClass(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:133)
2013-03-29 09:18:37 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-03-29 09:18:37 [INFO] [STDERR] ... 13 more