Posted May 25, 20169 yr So basically I reset my .minecraft folder due to lag. I then reinstalled everything I basically use on minecraft. 1.7 worked fine, however, 1.8 didn't, the launcher would close, then come back, here: https://gyazo.com/1c75c773eea9cd1f7cec840f11bff174 SEE! Open's then closes, and here's the Launch Logs: [18:53:53] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker [18:53:53] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker [18:53:53] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker [18:53:54] [main/INFO] [FML]: Forge Mod Loader version 11.14.4.1563 for Minecraft 1.8 loading [18:53:54] [main/INFO] [FML]: Java is Java HotSpot 64-Bit Server VM, version 1.8.0_25, running on Windows 10:amd64:10.0, installed at C:\Users\tasfi_000\Desktop\Minecraft\runtime\jre-x64\1.8.0_25 [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass1(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass(ClassLoader.java:760) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.access$100(URLClassLoader.java:73) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:367) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:361) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.AccessController.doPrivileged(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.findClass(URLClassLoader.java:360) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName0(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName(Class.java:344) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:409) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:241) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 23 more [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 25 more [18:53:54] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at C:\Users\tasfi_000\AppData\Roaming\.minecraft for Forge Mod Loader java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_25] at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_25] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_25] at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) ~[?:1.8.0_25] at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_25] at java.net.URLClassLoader$1.run(URLClassLoader.java:367) ~[?:1.8.0_25] at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.8.0_25] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25] at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_25] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_25] at java.lang.Class.forName(Class.java:344) ~[?:1.8.0_25] at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485) ~[forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:409) ~[forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:241) ~[forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95) [forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72) [forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119) [forge-1.8-11.14.4.1563.jar:?] at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?] Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] ... 23 more Caused by: java.lang.NullPointerException at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] ... 23 more Exception in thread "main" [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass1(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass(ClassLoader.java:760) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.access$100(URLClassLoader.java:73) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:367) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:361) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.AccessController.doPrivileged(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.findClass(URLClassLoader.java:360) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName0(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName(Class.java:344) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:409) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:241) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 23 more [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 25 more Can anyone help me find a fix asap, I have already tried using diffrent forge versions, and the mods I use is Optifine, PlayerAPI and Togglesneak [ALL 1.8] -Thank you, notify me if you find the solution! -Jamie
May 25, 20169 yr Author So basically I reset my .minecraft folder due to lag. I then reinstalled everything I basically use on minecraft. 1.7 worked fine, however, 1.8 didn't, the launcher would close, then come back, here: https://gyazo.com/1c75c773eea9cd1f7cec840f11bff174 SEE! Open's then closes, and here's the Launch Logs: [18:53:53] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker [18:53:53] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker [18:53:53] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker [18:53:54] [main/INFO] [FML]: Forge Mod Loader version 11.14.4.1563 for Minecraft 1.8 loading [18:53:54] [main/INFO] [FML]: Java is Java HotSpot 64-Bit Server VM, version 1.8.0_25, running on Windows 10:amd64:10.0, installed at C:\Users\tasfi_000\Desktop\Minecraft\runtime\jre-x64\1.8.0_25 [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass1(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass(ClassLoader.java:760) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.access$100(URLClassLoader.java:73) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:367) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:361) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.AccessController.doPrivileged(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.findClass(URLClassLoader.java:360) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName0(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName(Class.java:344) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:409) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:241) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 23 more [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 25 more [18:53:54] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at C:\Users\tasfi_000\AppData\Roaming\.minecraft for Forge Mod Loader java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_25] at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0_25] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_25] at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) ~[?:1.8.0_25] at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0_25] at java.net.URLClassLoader$1.run(URLClassLoader.java:367) ~[?:1.8.0_25] at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.8.0_25] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25] at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_25] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_25] at java.lang.Class.forName(Class.java:344) ~[?:1.8.0_25] at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485) ~[forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:409) ~[forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:241) ~[forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95) [forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72) [forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.8-11.14.4.1563.jar:?] at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119) [forge-1.8-11.14.4.1563.jar:?] at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.12.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?] Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] ... 23 more Caused by: java.lang.NullPointerException at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] ... 23 more Exception in thread "main" [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass1(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.defineClass(ClassLoader.java:760) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.defineClass(URLClassLoader.java:455) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.access$100(URLClassLoader.java:73) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:367) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader$1.run(URLClassLoader.java:361) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.security.AccessController.doPrivileged(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.net.URLClassLoader.findClass(URLClassLoader.java:360) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName0(Native Method) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.Class.forName(Class.java:344) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:409) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:241) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:424) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at java.lang.ClassLoader.loadClass(ClassLoader.java:357) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 23 more [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) [18:53:54] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:748]: ... 25 more Can anyone help me find a fix asap, I have already tried using diffrent forge versions, and the mods I use is Optifine, PlayerAPI and Togglesneak [ALL 1.8] -Thank you, notify me if you find the solution! -Jamie
May 25, 20169 yr Author I'm sorry, My bad, if you're having these problems, make sure ALL of your mods are 1.8 inside the folder "mods" I had some 1.7 files inside! sorry for wasting your time
May 25, 20169 yr Author I'm sorry, My bad, if you're having these problems, make sure ALL of your mods are 1.8 inside the folder "mods" I had some 1.7 files inside! sorry for wasting your time
May 25, 20169 yr I was going to say. Looks as if it was having a hard time running 1.7.10 class files. Glad you found a fix! http://i.imgur.com/vmqyxTE.png[/img]
May 25, 20169 yr I was going to say. Looks as if it was having a hard time running 1.7.10 class files. Glad you found a fix! http://i.imgur.com/vmqyxTE.png[/img]
May 25, 20169 yr thanks dude, feel like an idiot No problem. can a Moderator please lock this topic. http://i.imgur.com/vmqyxTE.png[/img]
May 25, 20169 yr thanks dude, feel like an idiot No problem. can a Moderator please lock this topic. http://i.imgur.com/vmqyxTE.png[/img]
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