After updating EF with version 1.4.13, I look the following message box just with opening the library.
An unexpected error has occured
(ValueError: NSInvalidArgumentException -***-
[NSMenu removeAllItems]: unrecognized selector
sent to instance 0x25d0cc0)
This message always appears when opening window at first time and disappears at next relaunching & opening.
Now, any trouble might be seen now about function of EF, and any collapse of current data.
From what I’ve seen, this error only occurs on Mac OS X 10.4 and 10.5. I accidentally introduced it while working around a bug in Mac OS X 10.6. It’s just a cosmetic bug. Once open, the library should function normally, and your data will remain intact. I will be issuing a fix shortly.