Safari: dialog keeps appearing (~once a minute) - com.apple.CoreSimulator.CoreSimulatorService quit unexpectedly.

After a Safari crash where I was attempting to re-organize some bookmarks on the Bookmark Bar I keep getting this message: com.apple.CoreSimulator.CoreSimulatorService quit unexpectedly.

Additional observations:

Even tho this dialog is showing, Safari continues to work. The dialog is just in the way.
All extensions were disabled and problem persist.
All peripheral (USB-C) devices detached and problem persists.
Boot in Safe-Mode and problem persists.

Any ideas would be appreciated.

MacBook Pro 16″, macOS 10.15

Posted on Oct 22, 2020 3:58 PM

Similar questions

2 replies

kagatone Author

Level 1

9 points

Oct 23, 2020 12:48 PM in response to kagatone

Looks like the problem was with an Xcode upgrade. Additional components needed to be installed and I hadn't completed that operation. Once I did the problem went away.

Oct 26, 2020 7:49 AM in response to kagatone

Opening Xcode and letting it complete (an apparently incomplete) installation also solved the issue for me.

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Safari: dialog keeps appearing (~once a minute) - com.apple.CoreSimulator.CoreSimulatorService quit unexpectedly.

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