SirDankerinoes 0 Report post Posted January 9, 2017 My Forge 1.8 (release 1.8-forge1.8-11.14.4.1577) crashes on launch. I copied the exact .minecraft file from my PC without modifying any files. Crash Report: [12:22:58] [main/INFO]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker [12:22:58] [main/ERROR]: Unable to launch java.lang.ClassNotFoundException: net.minecraftforge.fml.common.launcher.FMLTweaker at java.net.URLClassLoader$1.run(URLClassLoader.java:372) ~[?:1.8.0_25] at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.8.0_25] at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_25] at java.net.URLClassLoader.findClass(URLClassLoader.java:360) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_25] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) ~[?:1.8.0_25] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_25] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:106) ~[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.minecraft.launchwrapper.Launch.launch(Launch.java:98) [launchwrapper-1.12.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?] Java HotSpot 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release Share this post Link to post Share on other sites
diesieben07 5800 Report post Posted January 9, 2017 Don't copy .minecraft, use the installer. Share this post Link to post Share on other sites
