fieryzombie31

I used the FORGE_CLIENT run thing

Running the mods worked in 1.11 on same computer, same environment. When I try to launch my mod I get this error: java.lang.ClassNotFoundException: net.minecraftforge.fml.common.launcher.FMLTweaker at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_131] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[?:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_131] at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:106) ~[launchwrapper-1.12.jar:?] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_131] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_131] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_131] at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_131] 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:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_131] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_131] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131] at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?] at GradleStart.main(GradleStart.java:26) [start/:?]