Updated Monterey 12.5.1 will not open my older Photo Library and will not Migrate either. Space problem
To save space, it was suggested to merge my photo libraries to eliminate duplicates and make space. I downloaded a 3rd party app called Power Photos, which wouldn't run until I updated OS. After updating the OS to 12.5.1, my MacBook Air wouldn't run the older photo library. As it asked to update the file, it ran into a space problem...which is why I began the whole process. Now I'm stuck. Can't open the library, can't run the program to merge, can't Un-Update the computer. Any help would be appreciated. My first inclination was to purchase another SSD 1T card, copy the file here, update it... then move on. Is there an easier route?
MacBook Air 13″, macOS 12.5