Adobe Media Encoder CC 2014 on MacPro "mid-2012" (MacPro5,1) running OSX 10.9.3 and getting this error when trying to launch Adobe Media Encoder CC 2014:
Adobe Media Encoder Error
Adobe Media Encoder has encountered an unexpected error and cannot continue.
Have uninstalled, reinstalled. Checked and fixed permissions numerous times. Tried removing all plugins and that didn't fix. Also tried editing the text listings within the .app for OpenGL and CUDA to remove all cards listed - that didn't fix anything either.
At this point it's uninstalled and "hopefully" everything will point to CC (non-2014 version). Adobe Media Encoder CC works fine. Adobe Media Encoder CS6 works fine.
Cannot find any other reports of this issue.