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CrashPlan Support

CrashPlan App Won't Open And Displays JavaLaunchError

Applies to:
  • CrashPlan for Home
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This article is intended for CrashPlan for Home users. For Code42 CrashPlan and CrashPlan for Small Business documentation, read this page on our enterprise support site.


When trying to open the CrashPlan app, a message displays stating CrashPlan quit unexpectedly. If you click Report in this message, the problem report includes the Application Specific Information: "Terminating app due to uncaught exception 'JavaLaunchError'."

This issue occurs when the CrashPlan app is set to open in 32-bit mode on a Mac with a 64-bit processor. You can correct the issue by updating the application's general settings.


CrashPlan app on 64-bit Mac OS X configured to open in 32-bit mode

Recommended solution

  1. Open the Finder and go to the Applications folder
  2. Control-click CrashPlan
    The shortcut menu appears
  3. Select Get Info
  4. Under General, deselect Open in 32-bit mode
  5. Open the CrashPlan app
    The CrashPlan app opens without issue

CrashPlan Info