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"NoClassDefFoundError" Can't run client on IntelliJ

dun
in ForgeGradle

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Posted

For some reason, whenever I press runClient lately, I always get this error message:

Exception in thread "main" java.lang.NoClassDefFoundError: cpw/mods/gross/Java9ClassLoaderUtil
    at cpw.mods.modlauncher.TransformationServicesHandler.discoverServices(TransformationServicesHandler.java:139)
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:75)
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:66)
    at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105)
Caused by: java.lang.ClassNotFoundException: cpw.mods.gross.Java9ClassLoaderUtil
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
    ... 4 more

Can someone explained why this happens?

  • Quote
    • Author

    Found a way to fix it!

    I went to the gradle folder on the right side of the project and press "Reload All Gradle Project" and now I can runClient without the errors showing up!

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