I have a late 2012 Mac mini, 2.5 GHz Intel Core i5, running OS X Yosemite version 10.10.5 (14F27). Recently, just after the delta update to 10.10.5, two of my apps, uTorrent and All2MP3 have started crashing with the following error:
objc: Class is implemented in both /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit and /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit. One of the two will be used. Which one is undefined.
How can I fix this?