iPhoto won't open since last update V9.5.1
My iPhoto won't open since the latest update (V9.5.1) was installed. I do not get any error message, the icon bounces a couple times and then nothing happens. I've tried the following solutions found in other forums:
-Using "iPhoto Library Manager" to rebuild library and repair iPhoto, did not work because "iPhoto failed to open"
-Removing the file iPhotoLock.data from Finder>Pictures>Right Click iPhoto Library>Show Package Contents, this also did nothing.
I can't find any other solution and I'm worried that I may lose my pictures (over 20GB of pics).
Is someone else having similar issues?
iPhoto '11, OS X Mavericks (10.9.2)