Box Sync Quit Unexpectedly: ValueError - Class OC_PythonObject

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Note: End of Life (EOL) has been announced for Box Sync effective December 2026. For more information visit the official announcement page.

Note: Box Sync is not supported on Apple Silicon devices. Users on these devices need to switch to Box Drive.

Box Sync may quit unexpectedly and you will be presented with the following error:

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Environment

Mac OS machines with Box Sync installed.

Update your Operating to one of the two most recent versions. Find a list of supported Operating Systems here.