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iMovie crashes following update (Sierra 10.12.6)

Hello,  I recently updated to Sierra 10.12.6.  When I try to open iMovie it starts to load then crashes.

Here is the process occurring

Open iMovie
>Loading…

>>Validating iMovie Library

>>>loading project

>>>>Crash

Every time.

I have restarted. Tried opening from the apps folder (rather than the dock icon)  iMovie 10.1.7 is up to date.

I am using a MBP, 2.8 GHz Intel Core i7 processor w/ NVIDIA GeForce GT 650M 1024 MB Intel HD Graphics 4000 1536 MB

I hope someone can help.  I use iMovie to produce all of my instructional videos and now I cannot access nor edit any.

TIA

If iMovie isn't performing as expected, try these basic steps to fix the issue. 

Before following steps in this article, make sure that you have current backups of your libraries and your media, as well as a backup of the iMovie application.

These steps might not cover your specific issue and are not comprehensive.

1. Restart your computer

Restarting your computer resets iMovie related system resources. It's the simplest thing you can do to resolve iMovie issues. 

2. Ensure iMovie is up to date

If you're actively working on a project, avoid updating or upgrading iMovie until you are finished with the project. Either complete the project in the version of iMovie you are currently working in, or make sure that you have a current backup of your events, projects, and iMovie. Having a back up ensures that your data and the application are unaffected if updating or upgrading to the latest version of iMovie doesn't address your issue.

• Mac App Store: Update applications

3. Review iMovie documentation

To verify that iMovie is working correctly, it's always a good idea to review the documentation to ensure that you clearly understand the expected behavior of what you're trying to do in iMovie. Following this step thoroughly could save a lot of time by eliminating perceived issues.

For information on how to access iMovie Help see iMovie help.

4. Make sure your camera is supported for use with iMovie

Make sure your camera is a supported camera.

5. Isolate an issue by using another user account

For more information see how to test an issue in another user account on your Mac.

6. Create a new library

You can isolate issues with libraries by creating a new, empty library when opening iMovie. This demonstrates that iMovie is working as expected with a new library. Then, you can open and close your libraries one at a time until you can to reproduce the issue and identify an affected library.

To create a new library, first quit iMovie. Then, option-click the iMovie application icon in the Dock and click New to create a new library.

7. Test with "known-good" media

"Known-good" media is media that you know consistently works without issues. This  might be a media file from a previous project that you confidently know works as expected.

Using known-good media, such as the h.264 or MPEG-4 files from QuickTime Sample Files, can help you isolate an issue down to the media you're attempting to work with. If known-good media works as expected in iMovie but other media you've imported into iMovie does not, there might be an issue with the imported media. You might need to acquire it again from the original source, or it might be media that isn't supported for use in iMovie. Learn more about supported cameras.

8. Remove and reinstall iMovie

For instructions on removing and reinstalling iMovie, learn more about installing, updating, and uninstalling apps on OS X El Capitan. 

Let me know if this helps.

Thank you for using Apple Support Communities.

Cheers!

Thank you MoonJ. 

Although your answer did not solve my issue I have been able to correct it on my own.  I tried deleting the library and not only did it not fix the problem, I lost all of my projects. I ended up restoring iMovie from my (time machine) backup of a few days prior to when the issue started.  I also salvaged my projects by restoring my library as well.  This seemed to remedy the problem.

最後更新：2017-10-03 06:47:51

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