org.eclipse.core.runtime.CoreException: Executable extension definition for "class" not found.

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    Root Cause Analysis

    1. org.eclipse.core.runtime.CoreException

      Executable extension definition for "class" not found.

      at org.eclipse.core.internal.registry.ConfigurationElement.throwException()
    2. Equinox
      ConfigurationElementHandle.createExecutableExtension
      1. org.eclipse.core.internal.registry.ConfigurationElement.throwException(ConfigurationElement.java:62)
      2. org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:222)
      3. org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:55)
      3 frames
    3. Eclipse UI
      WorkbenchPlugin$1.run
      1. org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:291)
      1 frame
    4. RWT
      BusyIndicator.showWhile
      1. org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:52)
      1 frame
    5. Eclipse UI
      EarlyStartupRunnable.run
      1. org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:286)
      2. org.eclipse.ui.internal.EarlyStartupRunnable.run(EarlyStartupRunnable.java:53)
      2 frames
    6. Eclipse Core
      SafeRunner.run
      1. org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
      1 frame
    7. Eclipse UI
      Workbench$55.run
      1. org.eclipse.ui.internal.Workbench$55.run(Workbench.java:2829)
      1 frame
    8. Eclipse Jobs
      Worker.run
      1. org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
      1 frame