java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:455)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:367)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:117)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:344)
	at net.minecraftforge.fml.relauncher.CoreModManager.loadCoreMod(CoreModManager.java:485)
	at net.minecraftforge.fml.relauncher.CoreModManager.discoverCoreMods(CoreModManager.java:409)
	at net.minecraftforge.fml.relauncher.CoreModManager.handleLaunch(CoreModManager.java:241)
	at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupHome(FMLLaunchHandler.java:95)
	at net.minecraftforge.fml.relauncher.FMLLaunchHandler.setupClient(FMLLaunchHandler.java:72)
	at net.minecraftforge.fml.relauncher.FMLLaunchHandler.configureForClientLaunch(FMLLaunchHandler.java:34)
	at net.minecraftforge.fml.common.launcher.FMLTweaker.injectIntoClassLoader(FMLTweaker.java:119)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:115)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.relauncher.IFMLLoadingPlugin
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 23 more
Caused by: java.lang.NullPointerException
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
	... 25 more
17:23:18	game	Exception in thread "main"   <log4j:Event logger="STDERR" timestamp="1493428998586" level="INFO" thread="main">
    <log4j:Message><![CDATA[[java.lang.Throwable$WrappedPrintStream:println:748]: java.lang.NoClassDefFoundError: cpw/mods/fml/relauncher/IFMLLoadingPlugin]]></log4j:Message>
  </log4j:Event>
17:23:18	monitor	expected <