I am also having this issue on a 2015 iMac recently upgraded to macOS Catalina. My library is stored on the internal storage 'Macintosh HD' and exhibits the same behavior.
Watchtower Library for Mac 2 2.1 is available as a free download on our software library. The actual developer of this free Mac application is Roy Ratcliffe. The application is categorized as System Tools. Oct 07, 2019 The Mac has been shipping with 64-bit processors since before the Intel transition of 2005 and 64-bit was a headline feature of macOS going all the way back to Leopard in 2007. Now, with macOS Catalina, the transition is complete. 32-bit apps, dragged along this past decade, will now launch no more.
Opening Photos to a blank window and an alert that reads 'Photos cannot find the System Photo Library named “Photos Library”'. Choosing the correct library instantly brings this alert back up with no apparent change. Repairing the library and rebooting the system has no effect.
I have also been signed out of iCloud Photos. Every time I recheck Photos in iCloud settings, it says 'Checking Library' for a second or two, then unchecks Photos again as if nothing has happened.
Mac Catalina Download
If anyone has any solution, please help us. I cannot find any further troubleshooting advice regarding this problem.
Wt Library For Mac Catalina
Oct 14, 2019 6:17 PM