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Currently supported: All versions

1.12.2 forge isn't working?

Thegeekatron
in Support & Bug Reports

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  • Author

huh, it's doing something different. When I try to launch it it doesn't crash, the launcher keeps responding, but it just doesn't open. The Minecraft launcher even thinks it's launched.

  • Author

I don't think so, I'm just using the regular Minecraft launcher, and I didn't change any of the install options.

  • Author

oh my god I'm so sorry

 

[14:50:07] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[14:50:08] [main/INFO]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[14:50:08] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[14:50:08] [main/INFO]: Forge Mod Loader version 7.99.36.1558 for Minecraft 1.7.10 loading
[14:50:08] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25
[14:50:08] [main/WARN]: The coremod rangatangaa.minecraft.Blocks3D.B3DFMLLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass1(Native Method)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.AccessController.doPrivileged(Native Method)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName0(Native Method)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName(Class.java:344)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.relauncher.IFMLLoadingPlugin
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 23 more
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 25 more
[14:50:08] [main/ERROR]: An error occurred trying to configure the minecraft home at C:\Users\ButtLicker\AppData\Roaming\.minecraft for Forge Mod Loader
java.lang.NoClassDefFoundError: net/minecraftforge/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 cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) [forge-1.7.10-10.13.4.1558-1.7.10.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: net.minecraftforge.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
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass1(Native Method)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.AccessController.doPrivileged(Native Method)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName0(Native Method)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName(Class.java:344)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.relauncher.IFMLLoadingPlugin
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 23 more
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[14:50:08] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 25 more
 

this is the most recent one in the logs folder

you have a mod in there for a newer version

that log if from 1.7.10

Edited by loordgek

  • Author

oh wait, that might be when 1.7.10 didn't work

let's see, here's one from yesterday

 

[14:47:53] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[14:47:53] [main/INFO]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[14:47:53] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[14:47:53] [main/INFO]: Forge Mod Loader version 7.99.36.1558 for Minecraft 1.7.10 loading
[14:47:53] [main/INFO]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25
[14:47:53] [main/WARN]: The coremod rangatangaa.minecraft.Blocks3D.B3DFMLLoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass1(Native Method)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.AccessController.doPrivileged(Native Method)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName0(Native Method)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName(Class.java:344)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.relauncher.IFMLLoadingPlugin
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 23 more
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 25 more
[14:47:53] [main/ERROR]: An error occurred trying to configure the minecraft home at C:\Users\ButtLicker\AppData\Roaming\.minecraft for Forge Mod Loader
java.lang.NoClassDefFoundError: net/minecraftforge/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 cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221) ~[forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34) [forge-1.7.10-10.13.4.1558-1.7.10.jar:?]
    at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126) [forge-1.7.10-10.13.4.1558-1.7.10.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: net.minecraftforge.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
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: net/minecraftforge/fml/relauncher/IFMLLoadingPlugin
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass1(Native Method)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.security.AccessController.doPrivileged(Native Method)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName0(Native Method)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.Class.forName(Class.java:344)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:460)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:389)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:221)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:90)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:67)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at cpw.mods.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:126)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.ClassNotFoundException: net.minecraftforge.fml.relauncher.IFMLLoadingPlugin
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 23 more
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]: Caused by: java.lang.NullPointerException
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[14:47:53] [main/INFO]: [java.lang.Throwable$WrappedPrintStream:println:748]:     ... 25 more
 

you have a MOD in there for a newer version

you need to check your mods folder for never mods 1.8 and up

  • Author

Sweet, got 1.7.10 to work, now this should be a 1.12.2 log

 

[19:27:40] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[19:27:40] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[19:27:40] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[19:27:41] [main/INFO] [FML]: Forge Mod Loader version 14.23.3.2655 for Minecraft 1.12.2 loading
[19:27:41] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_25, running on Windows 10:amd64:10.0, installed at C:\Program Files (x86)\Minecraft\runtime\jre-x64\1.8.0_25
[19:27:41] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in Blocks3DMod-1.7.10.1.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[19:27:41] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.RuntimeException: An error occurred trying to configure the Minecraft home at C:\Users\ButtLicker\AppData\Roaming\.minecraft for Forge Mod Loader
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:106) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:77) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:40) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:140) ~[forge-1.12.2-14.23.3.2655.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.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:592) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) ~[forge-1.12.2-14.23.3.2655.jar:?]
    ... 5 more
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]
    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:592) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) ~[forge-1.12.2-14.23.3.2655.jar:?]
    ... 5 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]
    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$1.run(URLClassLoader.java:361) ~[?:1.8.0_25]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25]
    at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_25]
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117) ~[launchwrapper-1.12.jar:?]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25]
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25]
    at java.lang.Class.forName0(Native Method) ~[?:1.8.0_25]
    at java.lang.Class.forName(Class.java:344) ~[?:1.8.0_25]
    at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:592) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:427) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:254) ~[forge-1.12.2-14.23.3.2655.jar:?]
    at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102) ~[forge-1.12.2-14.23.3.2655.jar:?]
    ... 5 more
[19:27:41] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[19:27:41] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49)
[19:27:41] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.SecurityManager.checkExit(SecurityManager.java:761)
[19:27:41] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.Runtime.exit(Runtime.java:107)
[19:27:41] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at java.lang.System.exit(System.java:968)
[19:27:41] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[19:27:41] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]:     at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
 

  • Author

[15:33:11] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[15:33:11] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker
[15:33:11] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker
[15:33:11] [main/INFO] [FML]: Forge Mod Loader version 14.23.3.2655 for Minecraft 1.12.2 loading
 

most recent log, this is all there is

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https://forums.minecraftforge.net/topic/64345-1122-forge-isnt-working/
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