Direwolf20 pack not launching

  • Thread starter Deleted member 38496
  • Start date
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Deleted member 38496

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Whenever I click launch, nothing happens for a few seconds then the following appears in the log:

Exception in thread "main" java.lang.NoClassDefFoundError: net/minecraft/launchwrapper/Launch
Caused by: java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

It was working fine just a few hours ago and now this is happening. Any suggestions?
 
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