I am using Magic Launcher to install and use mods as I find it very simple to operate. It has worked supremely up until this point, when I tried to use Forge. I have read countless forums, but can't seem to find an answer. I have put Forge in the launcher by itself, and with Modloader, but neither work. I have also both deleted and manually installed the contents of the .minecraft/lib folder. I am using the newest version of forge too. I am now completely at a loss, and this is the only place that I could think to turn. My log is as follows:

 

(In Magic Launcher)

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[embed=425,349]*** MagicMinecraftLauncher 1.0.0 ***

Disable inactive mods

2012-11-18 17:45:04 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.4.4.442 for Minecraft 1.4.4 loading

2012-11-18 17:45:15 [iNFO] [sTDERR] java.lang.reflect.InvocationTargetException

2012-11-18 17:45:15 [iNFO] [sTDERR]    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at java.lang.reflect.Method.invoke(Unknown Source)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at magic.launcher.Launcher.main(Unknown Source)

2012-11-18 17:45:15 [iNFO] [sTDERR] Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: cpw.mods.fml.common.asm.FMLSanityChecker

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:175)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.relaunchClient(FMLRelauncher.java:92)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.handleClientRelaunch(FMLRelauncher.java:26)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at net.minecraft.client.Minecraft.main(Minecraft.java:2219)

2012-11-18 17:45:15 [iNFO] [sTDERR]    ... 5 more

2012-11-18 17:45:15 [iNFO] [sTDERR] Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: cpw.mods.fml.common.asm.FMLSanityChecker

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:264)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.FMLRelauncher.setupHome(FMLRelauncher.java:155)

2012-11-18 17:45:15 [iNFO] [sTDERR]    ... 8 more

2012-11-18 17:45:15 [iNFO] [sTDERR] Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.common.asm.FMLSanityChecker

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:141)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at java.lang.ClassLoader.loadClass(Unknown Source)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at java.lang.ClassLoader.loadClass(Unknown Source)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at java.lang.Class.forName0(Native Method)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at java.lang.Class.forName(Unknown Source)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchLibraryManager.handleLaunch(RelaunchLibraryManager.java:256)

2012-11-18 17:45:15 [iNFO] [sTDERR]    ... 9 more

2012-11-18 17:45:15 [iNFO] [sTDERR] Caused by: java.lang.ClassCircularityError: codechicken/core/asm/ObfuscationManager$ClassMapping

2012-11-18 17:45:15 [iNFO] [sTDERR]    at codechicken.nei.asm.NEITransformer.transformer001(NEITransformer.java:31)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at codechicken.nei.asm.NEITransformer.transform(NEITransformer.java:102)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:178)

2012-11-18 17:45:15 [iNFO] [sTDERR]    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:133)

2012-11-18 17:45:15 [iNFO] [sTDERR]    ... 14 more

[/embed]

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(In .minecraft)

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[embed=425,349]2012-11-18 17:39:53 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.4.4.442 for Minecraft 1.4.4 loading

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] All core mods are successfully located

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Discovering coremods

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Found a candidate coremod CodeChickenCore 0.6.0.jar

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Loading coremod CodeChickenCore 0.6.0.jar

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Loaded coremod CodeChickenCore 0.6.0.jar

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Found a candidate coremod NotEnoughItems 1.4.0.0.jar

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Loading coremod NotEnoughItems 1.4.0.0.jar

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Loaded coremod NotEnoughItems 1.4.0.0.jar

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Found library file argo-2.25.jar present and correct in lib dir

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Found library file guava-12.0.1.jar present and correct in lib dir

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Found library file asm-all-4.0.jar present and correct in lib dir

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Running coremod plugins

2012-11-18 17:39:53 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin

[/embed]

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Any advice would be greatly appreciated.

Thanks,

dfrankcom

Ensure that you have installed EVERYTHING in the forge/fml zip into your minecraft.jar.

I did some fiddling after posting my response, and did some more research, and I finally solved the problem. I just had to delete the "coremods" folder in the .minecraft directory. I hope this helps anyone else that had the same problem as me!

dfrankcom

You probably had NEI installed but not CodeChickenCore