Photos library cannot be opened

I have a Photos Library in an external HD and recently starting to get the message like the attached image. Could you please help me how to fix this?

Posted on May 24, 2021 4:01 AM

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May 24, 2021 8:20 AM in response to seishoseisho

What format is the external drive?

To be compatible with a Photos library, it needs to be APFS or MacOS extended, with the ignore ownership checkbox checked.

See:

https://support.apple.com/en-gb/HT201517

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Photos library cannot be opened

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