java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by KshAbo
, 7 months ago
cpw/mods/fml/relauncher/IFMLLoadingPlugin
via GitHub by rub432
, 2 years ago
cpw/mods/fml/relauncher/IFMLLoadingPlugin
via GitHub by readldeal
, 2 years ago
cpw/mods/fml/relauncher/IFMLLoadingPlugin
via Arqade by Drakon Lost
, 1 year ago
cpw/mods/fml/relauncher/IFMLLoadingPlugin
via minecraftuser.jp by Unknown author, 1 year ago
via minecraftuser.jp by Unknown author, 1 year ago
java.lang.NullPointerException:
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:344)
at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:552)
at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:423)
at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:253)
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:102)
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:79)
at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:41)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)

Users with the same issue

Samebug visitor profile picture
Unknown user
Once, 2 weeks ago
Samebug visitor profile picture
Unknown user
Once, 4 months ago
Samebug visitor profile picture
Unknown user
Once, 6 months ago
Samebug visitor profile picture
Unknown user
Once, 8 months ago
Samebug visitor profile picture
Unknown user
Once, 9 months ago

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.