java.lang.NoClassDefFoundError: com/viaversion/viaversion/api/protocol/version/ProtocolVersion
at ViaMCP.protocols.ProtocolCollection.<clinit>(ProtocolCollection.java:9)
at ViaMCP.gui.AsyncVersionSlider.<init>(AsyncVersionSlider.java:16)
at ViaMCP.ViaMCP.<init>(ViaMCP.java:50)
at ViaMCP.ViaMCP.<clinit>(ViaMCP.java:29)
at fun.rich.client.Rich.init(Rich.java:74)
at net.minecraft.client.Minecraft.startGame(Minecraft.java:699)
at net.minecraft.client.Minecraft.run(Minecraft.java:532)
at net.minecraft.client.main.Main.main(Main.java:116)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at misc.tweaker.Tweaker.a(Unknown Source)
at misc.tweaker.Tweaker.stubMain(Unknown Source)
at misc.tweaker.StubMain.main(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.viaversion.viaversion.api.protocol.version.ProtocolVersion
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 15 more
