Minecraft Forums

Hi, i used this tutorial in here http://www.minecraftforum.net/topic/1583649-152-and-below-installing-mods-w-multimc-installation-guide/ to install forge to minecraft. Everything was fine until step 5 of installing.
It gave me an error which said "There was a fatal error starting up minecraft and FML" and here is the report i got .


2013-08-26 18:59:17 [INFO] [ForgeModLoader] Forge Mod Loader version 5.2.23.738 for Minecraft 1.5.2 loading
2013-08-26 18:59:17 [INFO] [ForgeModLoader] Java is Java HotSpot(TM) Client VM, version 1.7.0_25, running on Windows Vista:x86:6.0, installed at C:\Program Files\Java\jre7
2013-08-26 18:59:17 [FINE] [ForgeModLoader] Java classpath at launch is /C:/Users/user/AppData/Local/Temp/e4j32BB.tmp_dir/MinecraftSP.jar
2013-08-26 18:59:17 [FINE] [ForgeModLoader] Java library path at launch is C:\Windows\system32;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files\NVIDIA Corporation\PhysX\Common;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Windows Live\Shared;C:\Program Files\QuickTime\QTSystem\;c:\program files\java\jre7\bin;.
2013-08-26 18:59:17 [FINE] [ForgeModLoader] Enabling runtime deobfuscation
2013-08-26 18:59:17 [FINEST] [ForgeModLoader] All core mods are successfully located
2013-08-26 18:59:17 [FINEST] [ForgeModLoader] Discovering coremods
2013-08-26 18:59:17 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar
2013-08-26 18:59:17 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-small-3.2.jar
2013-08-26 18:59:19 [FINEST] [ForgeModLoader] Download complete
2013-08-26 18:59:19 [INFO] [ForgeModLoader] Download complete
2013-08-26 18:59:19 [FINEST] [ForgeModLoader] Library file argo-small-3.2.jar was downloaded and verified successfully
2013-08-26 18:59:19 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar
2013-08-26 18:59:19 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-14.0-rc3.jar
2013-08-26 18:59:30 [FINEST] [ForgeModLoader] Download complete
2013-08-26 18:59:30 [INFO] [ForgeModLoader] Download complete
2013-08-26 18:59:30 [FINEST] [ForgeModLoader] Library file guava-14.0-rc3.jar was downloaded and verified successfully
2013-08-26 18:59:30 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar
2013-08-26 18:59:30 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.1.jar
2013-08-26 18:59:33 [FINEST] [ForgeModLoader] Download complete
2013-08-26 18:59:33 [INFO] [ForgeModLoader] Download complete
2013-08-26 18:59:33 [FINEST] [ForgeModLoader] Library file asm-all-4.1.jar was downloaded and verified successfully
2013-08-26 18:59:33 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
2013-08-26 18:59:33 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/bcprov-jdk15on-148.jar
2013-08-26 18:59:45 [FINEST] [ForgeModLoader] Download complete
2013-08-26 18:59:45 [INFO] [ForgeModLoader] Download complete
2013-08-26 18:59:45 [FINEST] [ForgeModLoader] Library file bcprov-jdk15on-148.jar was downloaded and verified successfully
2013-08-26 18:59:45 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.2.zip
2013-08-26 18:59:45 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/deobfuscation_data_1.5.2.zip
2013-08-26 18:59:46 [FINEST] [ForgeModLoader] Download complete
2013-08-26 18:59:46 [INFO] [ForgeModLoader] Download complete
2013-08-26 18:59:46 [FINEST] [ForgeModLoader] Library file deobfuscation_data_1.5.2.zip was downloaded and verified successfully
2013-08-26 18:59:46 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar
2013-08-26 18:59:46 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/scala-library.jar
2013-08-26 19:00:11 [FINEST] [ForgeModLoader] Download complete
2013-08-26 19:00:11 [INFO] [ForgeModLoader] Download complete
2013-08-26 19:00:11 [FINEST] [ForgeModLoader] Library file scala-library.jar was downloaded and verified successfully
2013-08-26 19:01:31 [INFO] [STDERR] Exception in thread "Thread-2" java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap
2013-08-26 19:01:31 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:192)
2013-08-26 19:01:31 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:259)
2013-08-26 19:01:31 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:229)
2013-08-26 19:01:31 [INFO] [STDERR] at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:25)
2013-08-26 19:01:31 [INFO] [STDERR] at net.minecraft.Launcher.replace(Launcher.java:153)
2013-08-26 19:01:31 [INFO] [STDERR] at net.minecraft.Launcher$1.run(Launcher.java:94)
2013-08-26 19:01:31 [INFO] [STDERR] Caused by: java.lang.NoClassDefFoundError: com/google/common/collect/Multimap
2013-08-26 19:01:31 [INFO] [STDERR] at java.lang.Class.getDeclaredConstructors0(Native Method)
2013-08-26 19:01:31 [INFO] [STDERR] at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] at java.lang.Class.getConstructor0(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] at java.lang.Class.newInstance(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.registerTransformer(RelaunchClassLoader.java:122)
2013-08-26 19:01:31 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:271)
2013-08-26 19:01:31 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:172)
2013-08-26 19:01:31 [INFO] [STDERR] ... 5 more
2013-08-26 19:01:31 [INFO] [STDERR] Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Multimap
2013-08-26 19:01:31 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] at java.security.AccessController.doPrivileged(Native Method)
2013-08-26 19:01:31 [INFO] [STDERR] at java.net.URLClassLoader.findClass(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:160)
2013-08-26 19:01:31 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-08-26 19:01:31 [INFO] [STDERR] ... 12 more

please help me with this