I can not open my Iphoto library it says it is either used by another application or has become unreadabe. I shut down and restart an then open Iphoto again but nothing is their.
These are your options:
1. Restore the iPhoto library from the most recent backup that predates the issue.
2. Repair or rebuild the library.
3. Scavenge the library with iPhoto Library Manager independently of iPhoto (Library ▹ Rebuild). Books, calendars, and slideshows won't be preserved.
Retrieving data ...