Photo access
I have lost the ability to access iPhoto on my iMac since updating to Yosemite. I get a notification message that reads: "To prepare the library, use the iPhoto Library Upgrader available from Apple."
I follow the link & download the iPhoto upgrader, double click and run the installation, get the message that installation was successful, and then try to access iPhoto and get the same notification.
I have restarted with no effect. What gives?
iMac, OS X Yosemite (10.10.1)