Updated to 10.10.3 and now iPhoto won't open
I upgraded the OS 10.10.3 and now iPhoto won't open. It says "the version of iPhoto installed on this Mac is not compatible with OS X Yosemite. Download the latest version for free from the Mac App Store." However, when I go to the Mac App Store, there is no iPhoto.
I don't know what version of iPhoto I was running. I believe it was the most recent (9.6)
I also noticed that the iPhoto icon has a circle with a line through it
The support article says I can use iPhoto concurrently with the new photos