Tell everyone you know who owns a Mac, including Apple employees... Mac Migration and Time Machine DO NOT WORK properly with Adobe program activations due to hidden registration files that are not included when Migration or Time Machine make their copies
Sign out of your account... Uninstall... run the Cleaner...
-for non-Cloud programs you need to DE-activate before uninstalling
-http://helpx.adobe.com/creative-cloud/help/install-apps.html (and uninstall)
-using the cleaner after uninstalling and before reinstalling is often needed
-Restart your computer... Sign in to your account... Reinstall
-and 5 steps in reply #1 https://forums.adobe.com/thread/2144928
Thanks for your message but.. dosen't work.
I instal CC-Cleaner by Adobe, I unistal, restart, read all pages in your links, and... nothing.
I have to contact the support of telephone of Adobe with a number found at random on a forum (it's crazy, there is not even on the official website !!). He redirected me to a chat counselor who is not necessarily the most friendly and very critical of Apple and the Mac. He added an "exceptional" license to my account so that I could use my computer.
I'm really disappointed with the Adobe service.
When I see that my version of Lightroom 6 has half as much update as the same version of Lightroom 6 in Creative Cloud when I paid the high price for the purchase, I am disappointed from the beginning to the end.