Minecraft Forums

Hey guys, I installed Forge universal for MC 1.4.2. When I opened MC, it said Forge is setting up your MC account and then went to a black screen. I really want forge for a bunch of mods, but I can live without it, so if it's somehow unfixable then okay.

I have the same problem here is my ForgeModLoader-client-0.log

2012-11-04 09:17:22 [INFO] [ForgeModLoader] Forge Mod Loader version 4.2.6.422 for Minecraft 1.4.2 loading
2012-11-04 09:17:22 [FINEST] [ForgeModLoader] All core mods are successfully located
2012-11-04 09:17:22 [FINEST] [ForgeModLoader] Discovering coremods
2012-11-04 09:17:22 [INFO] [STDOUT] Downloading file: files.minecraftforge.net/fmllibs/argo-2.25.jar
2012-11-04 09:17:22 [INFO] [STDOUT] The libFile's path is C:\Users\Jess\AppData\Roaming\.minecraft\lib\argo-2.25.jar
2012-11-04 09:17:22 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar
2012-11-04 09:17:22 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar
2012-11-04 09:17:22 [INFO] [STDOUT] Request: GET http://files.minecraftforge.net/fmllibs/argo-2.25.jar
2012-11-04 09:17:22 [INFO] [STDOUT] No handler. Piping.
2012-11-04 09:17:23 [INFO] [STDOUT] Piping finished, data size: 123642
2012-11-04 09:17:23 [FINEST] [ForgeModLoader] Download complete
2012-11-04 09:17:23 [INFO] [ForgeModLoader] Download complete
2012-11-04 09:17:23 [FINEST] [ForgeModLoader] Library file argo-2.25.jar was downloaded and verified successfully

2012-11-04 09:17:23 [INFO] [STDOUT] Downloading file: files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2012-11-04 09:17:23 [INFO] [STDOUT] The libFile's path is C:\Users\Jess\AppData\Roaming\.minecraft\lib\guava-12.0.1.jar
2012-11-04 09:17:23 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2012-11-04 09:17:23 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2012-11-04 09:17:23 [INFO] [STDOUT] Request: GET http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar
2012-11-04 09:17:23 [INFO] [STDOUT] No handler. Piping.
2012-11-04 09:17:25 [INFO] [STDOUT] Piping finished, data size: 1795932
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Download complete
2012-11-04 09:17:25 [INFO] [ForgeModLoader] Download complete
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Library file guava-12.0.1.jar was downloaded and verified successfully

2012-11-04 09:17:25 [INFO] [STDOUT] Downloading file: files.minecraftforge.net/fmllibs/asm-all-4.0.jar
2012-11-04 09:17:25 [INFO] [STDOUT] The libFile's path is C:\Users\Jess\AppData\Roaming\.minecraft\lib\asm-all-4.0.jar
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar
2012-11-04 09:17:25 [INFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar
2012-11-04 09:17:25 [INFO] [STDOUT] Request: GET http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar
2012-11-04 09:17:25 [INFO] [STDOUT] No handler. Piping.
2012-11-04 09:17:25 [INFO] [STDOUT] Piping finished, data size: 212767
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Download complete
2012-11-04 09:17:25 [INFO] [ForgeModLoader] Download complete
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Library file asm-all-4.0.jar was downloaded and verified successfully

2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Running coremod plugins
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Coremod plugin FMLCorePlugin run successfully
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Running coremod plugin FMLForgePlugin
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Coremod plugin FMLForgePlugin run successfully
2012-11-04 09:17:25 [FINEST] [ForgeModLoader] Validating minecraft
2012-11-04 09:17:26 [FINEST] [ForgeModLoader] Minecraft validated, launching...
2012-11-04 09:17:26 [INFO] [STDERR] Exception in thread "Thread-12" java.lang.RuntimeException: cpw.mods.fml.relauncher.ReflectionHelper$UnableToFindClassException: java.lang.ClassNotFoundException: net.minecraft.Launcher
2012-11-04 09:17:26 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:269)
2012-11-04 09:17:26 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212)
2012-11-04 09:17:26 [INFO] [STDERR] at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:28)
2012-11-04 09:17:26 [INFO] [STDERR] at net.minecraft.Launcher.replace(Launcher.java:136)
2012-11-04 09:17:26 [INFO] [STDERR] at net.minecraft.Launcher$1.run(Launcher.java:79)
2012-11-04 09:17:26 [INFO] [STDERR] Caused by: cpw.mods.fml.relauncher.ReflectionHelper$UnableToFindClassException: java.lang.ClassNotFoundException: net.minecraft.Launcher
2012-11-04 09:17:26 [INFO] [STDERR] at cpw.mods.fml.relauncher.ReflectionHelper.getClass(ReflectionHelper.java:159)
2012-11-04 09:17:26 [INFO] [STDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:254)
2012-11-04 09:17:26 [INFO] [STDERR] ... 4 more
2012-11-04 09:17:26 [INFO] [STDERR] Caused by: java.lang.ClassNotFoundException: net.minecraft.Launcher
2012-11-04 09:17:26 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2012-11-04 09:17:26 [INFO] [STDERR] at java.net.URLClassLoader$1.run(Unknown Source)
2012-11-04 09:17:26 [INFO] [STDERR] at java.security.AccessController.doPrivileged(Native Method)
2012-11-04 09:17:26 [INFO] [STDERR] at java.net.URLClassLoader.findClass(Unknown Source)
2012-11-04 09:17:26 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2012-11-04 09:17:26 [INFO] [STDERR] at java.lang.ClassLoader.loadClass(Unknown Source)
2012-11-04 09:17:26 [INFO] [STDERR] at java.lang.Class.forName0(Native Method)
2012-11-04 09:17:26 [INFO] [STDERR] at java.lang.Class.forName(Unknown Source)
2012-11-04 09:17:26 [INFO] [STDERR] at cpw.mods.fml.relauncher.ReflectionHelper.getClass(ReflectionHelper.java:151)
2012-11-04 09:17:26 [INFO] [STDERR] ... 5 more