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Help me! I started up minecraft after putting forge in minecraft.jar. Then I got this error:


2013-02-18 11:31:48 [INFO] [ForgeModLoader] Forge Mod Loader version 4.7.4.520 for Minecraft 1.4.7 loading
2013-02-18 11:31:48 [FINEST] [ForgeModLoader] All core mods are successfully located
2013-02-18 11:31:48 [FINEST] [ForgeModLoader] Discovering coremods
2013-02-18 11:31:48 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar
2013-02-18 11:31:48 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar
2013-02-18 11:31:52 [FINEST] [ForgeModLoader] Download complete
2013-02-18 11:31:52 [INFO] [ForgeModLoader] Download complete
2013-02-18 11:31:52 [FINEST] [ForgeModLoader] Library file argo-2.25.jar was downloaded and verified successfully
2013-02-18 11:31:52 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2013-02-18 11:31:52 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2013-02-18 11:32:04 [FINEST] [ForgeModLoader] Download complete
2013-02-18 11:32:04 [INFO] [ForgeModLoader] Download complete
2013-02-18 11:32:04 [FINEST] [ForgeModLoader] Library file guava-12.0.1.jar was downloaded and verified successfully
2013-02-18 11:32:04 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar
2013-02-18 11:32:04 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar
2013-02-18 11:32:08 [FINEST] [ForgeModLoader] Download complete
2013-02-18 11:32:08 [INFO] [ForgeModLoader] Download complete
2013-02-18 11:32:08 [FINEST] [ForgeModLoader] Library file asm-all-4.0.jar was downloaded and verified successfully
2013-02-18 11:32:08 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar
2013-02-18 11:32:08 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-147.jar
2013-02-18 11:32:23 [FINEST] [ForgeModLoader] Download complete
2013-02-18 11:32:23 [INFO] [ForgeModLoader] Download complete
2013-02-18 11:32:23 [FINEST] [ForgeModLoader] Library file bcprov-jdk15on-147.jar was downloaded and verified successfully
2013-02-18 11:32:28 [INFO] [STDERR] Exception in thread "Thread-2" java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap
2013-02-18 11:32:28 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:175)
2013-02-18 11:32:28 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:242)
2013-02-18 11:32:28 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212)
2013-02-18 11:32:28 [INFO] [STDERR] at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)
2013-02-18 11:32:28 [INFO] [STDERR] at net.minecraft.Launcher.replace(Launcher.java:153)
2013-02-18 11:32:28 [INFO] [STDERR] at net.minecraft.Launcher$1.run(Launcher.java:94)
2013-02-18 11:32:28 [INFO] [STDERR] Caused by: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap
2013-02-18 11:32:28 [INFO] [STDERR] at java.lang.Class.getDeclaredConstructors0(Native Method)
2013-02-18 11:32:28 [INFO] [STDERR] at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at java.lang.Class.getConstructor0(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at java.lang.Class.newInstance0(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at java.lang.Class.newInstance(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.registerTransformer(RelaunchClassLoader.java:77)
2013-02-18 11:32:28 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:238)
2013-02-18 11:32:28 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:155)
2013-02-18 11:32:28 [INFO] [STDERR] ... 5 more
2013-02-18 11:32:28 [INFO] [STDERR] Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Multimap
2013-02-18 11:32:28 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at java.security.AccessController.doPrivileged(Native Method)
2013-02-18 11:32:28 [INFO] [STDERR] at java.net.URLClassLoader.findClass(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:110)
2013-02-18 11:32:28 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-02-18 11:32:28 [INFO] [STDERR] ... 13 more