[20:25:38] [main/ERROR]: Unable to launch
java.lang.ClassNotFoundException: org.spongepowered.asm.launch.MixinTweaker
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_74]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_74]
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[?:1.8.0_74]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74]
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:106) ~[launchwrapper-1.12.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_74]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_74]
	at java.lang.Class.forName0(Native Method) ~[?:1.8.0_74]
	at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_74]
	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_74]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_74]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_74]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_74]
	at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:310) [NewLaunch.jar:?]
	at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:395) [NewLaunch.jar:?]
	at org.multimc.EntryPoint.listen(EntryPoint.java:170) [NewLaunch.jar:?]
	at org.multimc.EntryPoint.main(EntryPoint.java:54) [NewLaunch.jar:?]
Process exited with code 1.