1. FATAL ERROR: net.minecraft.bootstrap.FatalBootstrapError: Unable to start: java.lang.reflect.InvocationTargetException
  2. at net.minecraft.bootstrap.Bootstrap.startLauncher(Bootstrap.java:242)
  3. at net.minecraft.bootstrap.Bootstrap.execute(Bootstrap.java:124)
  4. at net.minecraft.bootstrap.Bootstrap.main(Bootstrap.java:381)
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  7. Please fix the error and restart.