"Unsupported Library" error message
I have a Macbook and a Macbook Air. I have Photos on both machines--recently upgraded to Yosemite on both within the last week.
I keep my photos on an external portable hard drive. I created a Photos library of photos from iPhoto on Macbook. Then I took that same external hard drive, with the new Photos library, and tried to open it on my MacBook Air and I received this notice:
Unsupported Library
The Library "Photos Library on hard drive" is from a newer version of Photos. Please upgrade to open this library.
I don't see anyplace to upgrade my version of photos.
Any thoughts or advice would be appreciated.
Thanks!
John.
MacBook Air, OS X Mavericks (10.9.4)