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[5240]: 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?
Best Answer
Just guessing:
My standard install of OS X Yosemite 10.10.5 doesn't contain the file
/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit.
.Please check the following:
/System/Library/Frameworks/AppKit.framework/Versions/
. It should be/System/Library/Frameworks/AppKit.framework/Versions/C/
./System/Library/Frameworks/AppKit.framework/Versions/C/
contain a second file namedAppkit.
?If the folder
/System/Library/Frameworks/AppKit.framework/Versions/C/
contains a second file namedAppkit.
, check the md5s (md5 /path/to/file
) of the filesAppkit
andAppkit.
. The md5 of the fileAppkit
in my system is 5404e155c41dedd1bea5e29bf02182d8 (size=39.450.864 bytes, mod date 2nd of June 2015). If you have 2 filesAppkit
andAppkit.
with identical and correct md5s moveAppkit.
to a save place with:If one has the correct md5 and the other a wrong md5, remove the file with wrong md5 and if necessary rename the correct one to "Appkit". If both md5s are wrong reinstall 10.10.5 with the 10.10.5 Combo Updater. Reboot your Mac and test the behavior of µTorrent. If the testing with µTorrent gave a positive result remove the file
/System/Library/Frameworks/Appkit.
If the folder doesn't contain a file named "Appkit." at all boot to your Recovery HD and try repair your main volume.