17:28:41] [Client thread/FATAL]: Unreported exception thrown!
java.lang.NoClassDefFoundError: com/google/common/collect/ForwardingMultimap
  at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0-internal]
  at java.lang.ClassLoader.defineClass(ClassLoader.java:760) ~[?:1.8.0-internal]
  at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0-internal]
  at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) ~[?:1.8.0-internal]
  at java.net.URLClassLoader.access$100(URLClassLoader.java:73) ~[?:1.8.0-internal]
  at java.net.URLClassLoader$1.run(URLClassLoader.java:368) ~[?:1.8.0-internal]
  at java.net.URLClassLoader$1.run(URLClassLoader.java:362) ~[?:1.8.0-internal]
  at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0-internal]
  at java.net.URLClassLoader.findClass(URLClassLoader.java:361) ~[?:1.8.0-internal]
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0-internal]
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[?:1.8.0-internal]
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0-internal]
  at com.mojang.authlib.GameProfile.<init>(Unknown Source) ~[Launcher.jar:?]
  at cofh.core.CoFHProps.<clinit>(CoFHProps.java:28) ~[CoFHProps.class:?]
  at cofh.asmhooks.HooksCore.tickTextures(HooksCore.java:124) ~[HooksCore.class:?]
  at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1608) ~[bao.class:?]
  at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:972) ~[bao.class:?]
  at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898) [bao.class:?]
  at net.minecraft.client.main.Main.main(SourceFile:148) [Main.class:?]
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0-internal]
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0-internal]
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0-internal]
  at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0-internal]
  at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
  at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
  at pro.gravit.launcher.client.ClientLauncher.launch(Unknown Source) [Launcher.jar:?]
  at pro.gravit.launcher.client.ClientLauncher.main(Unknown Source) [Launcher.jar:?]
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.ForwardingMultimap
  at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0-internal]
  at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0-internal]
  at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[?:1.8.0-internal]
  at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0-internal]
  ... 27 more