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Currently supported: All versions

Forge 1.8 Installed launcher opens but my Minecraft fails to start.

Monzta
in Support & Bug Reports

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Posted

I downloaded the newest Forge version for 1.8 but this is what I get when I try to load up my Minecraft after I start the launcher. Any suggestion of how to fix this problem?

 

[00:39:25] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker

[00:39:25] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker

[00:39:25] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker

[00:39:25] [main/INFO] [FML]: Forge Mod Loader version 8.0.26.1301 for Minecraft 1.8 loading

[00:39:25] [main/INFO] [FML]: Java is Java HotSpot Client VM, version 1.8.0_31, running on Windows 8.1:x86:6.3, installed at C:\Program Files (x86)\Java\jre1.8.0_31

[00:39:25] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.7.10_HD_B4.jar

[00:39:25] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.8.1_HD_U_C7.jar

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.defineClass1(Native Method)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.defineClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.security.SecureClassLoader.defineClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.defineClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.access$100(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader$1.run(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader$1.run(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.security.AccessController.doPrivileged(Native Method)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.findClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.Class.forName0(Native Method)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.Class.forName(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:420)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:349)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:217)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:125)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: ... 23 more

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.NullPointerException

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: ... 25 more

[00:39:25] [main/ERROR] [FML]: An error occurred trying to configure the minecraft home at C:\Users\Judson\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_31]

at java.lang.ClassLoader.defineClass(Unknown Source) ~[?:1.8.0_31]

at java.security.SecureClassLoader.defineClass(Unknown Source) ~[?:1.8.0_31]

at java.net.URLClassLoader.defineClass(Unknown Source) ~[?:1.8.0_31]

at java.net.URLClassLoader.access$100(Unknown Source) ~[?:1.8.0_31]

at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_31]

at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.8.0_31]

at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_31]

at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.8.0_31]

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.11.jar:?]

at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]

at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]

at java.lang.Class.forName0(Native Method) ~[?:1.8.0_31]

at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_31]

at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:420) ~[forge-1.8-11.14.1.1301.jar:?]

at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:349) ~[forge-1.8-11.14.1.1301.jar:?]

at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:217) ~[forge-1.8-11.14.1.1301.jar:?]

at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.8-11.14.1.1301.jar:?]

at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.8-11.14.1.1301.jar:?]

at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.8-11.14.1.1301.jar:?]

at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:125) [forge-1.8-11.14.1.1301.jar:?]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.11.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]

Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.11.jar:?]

at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]

at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]

... 23 more

Caused by: java.lang.NullPointerException

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.11.jar:?]

at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]

at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_31]

... 23 more

Exception in thread "main" [00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.defineClass1(Native Method)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.defineClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.security.SecureClassLoader.defineClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.defineClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.access$100(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader$1.run(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader$1.run(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.security.AccessController.doPrivileged(Native Method)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.net.URLClassLoader.findClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.Class.forName0(Native Method)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.Class.forName(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:420)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:349)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:217)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:125)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: ... 23 more

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: Caused by: java.lang.NullPointerException

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)

[00:39:25] [main/INFO] [sTDERR]: [java.lang.Throwable$WrappedPrintStream:println:-1]: ... 25 more

 

  • Quote

     

    [00:39:25] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.7.10_HD_B4.jar

    [00:39:25] [main/INFO] [FML]: Loading tweaker optifine.OptiFineForgeTweaker from OptiFine_1.8.1_HD_U_C7.jar

    I do Forge for free, however the servers to run it arn't free, so anything is appreciated.
    Consider supporting the team on Patreon

  • Quote

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