Posted October 29, 201213 yr I have been trying to figure out how to install Forge for the past couple of days, and I have not figured out how to get it to work. I have force updated my minecraft and dragged the Forge.zip contents into the Minecraft.jar. Then, I have deleted the Meta-Inf folder. I have no mods, worlds, or texture packs when installing Forge. I have even tried installing Forge on my brother's computer and the same exact thing happened. When I login to Minecraft, the FML window loads then closes, but instead of the Minecraft logo, the screen turns all black. I have Java 7 update 9 and Java JDK 1.7.0. Here is the report. 8 19:59:32 [iNFO] [ForgeModLoader] Forge Mod Loader version 4.2.6.422 for Minecraft 1.4.2 loading 2012-10-28 19:59:32 [FINEST] [ForgeModLoader] All core mods are successfully located 2012-10-28 19:59:32 [FINEST] [ForgeModLoader] Discovering coremods 2012-10-28 19:59:32 [iNFO] [sTDOUT] Downloading file: files.minecraftforge.net/fmllibs/argo-2.25.jar 2012-10-28 19:59:32 [iNFO] [sTDOUT] The libFile's path is C:\Users\Kaitlyn\AppData\Roaming\.minecraft\lib\argo-2.25.jar 2012-10-28 19:59:32 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar 2012-10-28 19:59:32 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/argo-2.25.jar 2012-10-28 19:59:32 [iNFO] [sTDOUT] Request: GET http://files.minecraftforge.net/fmllibs/argo-2.25.jar 2012-10-28 19:59:32 [iNFO] [sTDOUT] No handler. Piping. 2012-10-28 19:59:32 [iNFO] [sTDOUT] Piping finished, data size: 123642 2012-10-28 19:59:32 [FINEST] [ForgeModLoader] Download complete 2012-10-28 19:59:32 [iNFO] [ForgeModLoader] Download complete 2012-10-28 19:59:33 [FINEST] [ForgeModLoader] Library file argo-2.25.jar was downloaded and verified successfully 2012-10-28 19:59:33 [iNFO] [sTDOUT] Downloading file: files.minecraftforge.net/fmllibs/guava-12.0.1.jar 2012-10-28 19:59:33 [iNFO] [sTDOUT] The libFile's path is C:\Users\Kaitlyn\AppData\Roaming\.minecraft\lib\guava-12.0.1.jar 2012-10-28 19:59:33 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar 2012-10-28 19:59:33 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar 2012-10-28 19:59:33 [iNFO] [sTDOUT] Request: GET http://files.minecraftforge.net/fmllibs/guava-12.0.1.jar 2012-10-28 19:59:33 [iNFO] [sTDOUT] No handler. Piping. 2012-10-28 19:59:37 [iNFO] [sTDOUT] Piping finished, data size: 1795932 2012-10-28 19:59:37 [FINEST] [ForgeModLoader] Download complete 2012-10-28 19:59:37 [iNFO] [ForgeModLoader] Download complete 2012-10-28 19:59:37 [FINEST] [ForgeModLoader] Library file guava-12.0.1.jar was downloaded and verified successfully 2012-10-28 19:59:37 [iNFO] [sTDOUT] Downloading file: files.minecraftforge.net/fmllibs/asm-all-4.0.jar 2012-10-28 19:59:37 [iNFO] [sTDOUT] The libFile's path is C:\Users\Kaitlyn\AppData\Roaming\.minecraft\lib\asm-all-4.0.jar 2012-10-28 19:59:37 [FINEST] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar 2012-10-28 19:59:37 [iNFO] [ForgeModLoader] Downloading file http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar 2012-10-28 19:59:37 [iNFO] [sTDOUT] Request: GET http://files.minecraftforge.net/fmllibs/asm-all-4.0.jar 2012-10-28 19:59:37 [iNFO] [sTDOUT] No handler. Piping. 2012-10-28 19:59:38 [iNFO] [sTDOUT] Piping finished, data size: 212767 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Download complete 2012-10-28 19:59:38 [iNFO] [ForgeModLoader] Download complete 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Library file asm-all-4.0.jar was downloaded and verified successfully 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Running coremod plugins 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Running coremod plugin FMLCorePlugin 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Coremod plugin FMLCorePlugin run successfully 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Running coremod plugin FMLForgePlugin 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Coremod plugin FMLForgePlugin run successfully 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Validating minecraft 2012-10-28 19:59:38 [FINEST] [ForgeModLoader] Minecraft validated, launching... 2012-10-28 19:59:39 [iNFO] [sTDERR] Exception in thread "Thread-10" java.lang.RuntimeException: cpw.mods.fml.relauncher.ReflectionHelper$UnableToFindClassException: java.lang.ClassNotFoundException: net.minecraft.Launcher 2012-10-28 19:59:39 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:269) 2012-10-28 19:59:39 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.appletEntry(FMLRelauncher.java:212) 2012-10-28 19:59:39 [iNFO] [sTDERR] at net.minecraft.client.MinecraftApplet.init(MinecraftApplet.java:28) 2012-10-28 19:59:39 [iNFO] [sTDERR] at net.minecraft.Launcher.replace(Launcher.java:136) 2012-10-28 19:59:39 [iNFO] [sTDERR] at net.minecraft.Launcher$1.run(Launcher.java:79) 2012-10-28 19:59:39 [iNFO] [sTDERR] Caused by: cpw.mods.fml.relauncher.ReflectionHelper$UnableToFindClassException: java.lang.ClassNotFoundException: net.minecraft.Launcher 2012-10-28 19:59:39 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.ReflectionHelper.getClass(ReflectionHelper.java:159) 2012-10-28 19:59:39 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.FMLRelauncher.relaunchApplet(FMLRelauncher.java:254) 2012-10-28 19:59:39 [iNFO] [sTDERR] ... 4 more 2012-10-28 19:59:39 [iNFO] [sTDERR] Caused by: java.lang.ClassNotFoundException: net.minecraft.Launcher 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.net.URLClassLoader$1.run(Unknown Source) 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.net.URLClassLoader$1.run(Unknown Source) 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.security.AccessController.doPrivileged(Native Method) 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.net.URLClassLoader.findClass(Unknown Source) 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.lang.ClassLoader.loadClass(Unknown Source) 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.lang.Class.forName0(Native Method) 2012-10-28 19:59:39 [iNFO] [sTDERR] at java.lang.Class.forName(Unknown Source) 2012-10-28 19:59:39 [iNFO] [sTDERR] at cpw.mods.fml.relauncher.ReflectionHelper.getClass(ReflectionHelper.java:151) 2012-10-28 19:59:39 [iNFO] [sTDERR] ... 5 more
October 29, 201213 yr Caused by: java.lang.ClassNotFoundException: net.minecraft.Launcher Read the EAQ There's an EAQ for a reason. Read it! "Note that failure to read this will make you look idiotic. You don't want that do you?" -- luacs1998 First rule of bug reports: More information is always better. Oh, and logs OR IT DIDN'T HAPPEN!!
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