My copy of iPhoto has stopped opening my iPhoto Library.
When I open iPhoto, it shows me an empty “Which photo library do you want iPhoto to use?” window. This happens if I open iPhoto normally, or if I hold down the option and command keys while opening it, as suggested in the repair guide linked to from the comments below.
When I click the “Other Library...” button, I can select my iPhoto Library file, but clicking on the “Open” button has no effect.
When I Get Info on my iPhoto Library file in the Finder, it recognizes it as a photo library, and the size (418 MB) looks about right.
If I double-click on the iPhoto Library file, iPhoto does open, but it only shows me the empty “Which photo library do you want iPhoto to use?” window, just like when I open iPhoto itself.
Why won’t iPhoto open my iPhoto Library? And, more importantly, how can I make it open the Library again?