Re-install Lightroom 5 and use that
possible fixes to Lightroom CC
Some users have rolled back to the earlier version prior to the October updates. You can’t install an earlier version from Creative Cloud desktop; so launch Finder and use the installer in Applications to trash your present installation. Then download the original release. After installation apply the v1.1 patch.
Download LR 6.0/CC 2015.0
Apply the 6.1.1/ CC 2015.1.1 update
ok, thank you!
It's usually a good idea to clean up what’s left behind after uninstalling.
I recommend trashing the prefs.
Launch Finder and click the Go menu whilst holding down the Option (alt) key. Then go to Library >> Preferences and clear everything relating to LR6 which usually means deleting the following files:
Then try again before re-installing Lightroom as that could also be a fix.
Thank you for breaking it down. I am new to Mac and the learning curve is a little crazy.