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Forge 1.8; Problem with LaunchWrapper


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After i setup workspace i cant start forge gradle. (using Intellij idea 13 ultimate)

[10:30:18] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[10:30:18] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.ClassNotFoundException: cpw.mods.fml.common.launcher.FMLTweaker
at java.net.URLClassLoader$1.run(URLClassLoader.java:366) ~[?:1.7.0_71]
at java.net.URLClassLoader$1.run(URLClassLoader.java:355) ~[?:1.7.0_71]
at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_71]
at java.net.URLClassLoader.findClass(URLClassLoader.java:354) ~[?:1.7.0_71]
at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_71]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) ~[?:1.7.0_71]
at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_71]
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:106) ~[launchwrapper-1.11.jar:?]
at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_71]
at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_71]
at java.lang.Class.forName0(Native Method) ~[?:1.7.0_71]
at java.lang.Class.forName(Class.java:274) ~[?:1.7.0_71]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:98) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_71]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_71]
at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_71]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) [idea_rt.jar:?]

Process finished with exit code 0

forge version - 1.8- (currently its latest)

using java 7, same thing happens when i try to run it with java 6, i havent tried java 8 but i heard forge doest work on java 8.

vm args

-Xmx2048M -Xms2048M -Dfml.ignoreInvalidMinecraftCertificates­=true -Djava.library.path="**\1.8 Workspace\Forge\build\natives"



program args

--tweakClass cpw.mods.fml.common.launcher.FMLTweaker  --accessToken=FML

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