OS X/iOS version: 10.10
Software involved with the issue: Adobe Illustrator
Version number of the software involved: CS4
Piece(s) of hardware involved: Macbook Pro
Error message(s): (at splash screen) Error loading plugins photoshopimport.aip
I was using both Photoshop CS4 and Illustrator CS4 without problem until I downloaded and installed Photoshop CC late last week. The first time I tried to launch Illustrator after the new Photoshop installation produced the above Error message. At that point the program freezes and must be forced to quit.