So... did you go into your Mac operating system and give AE and all folders full read/write permission?
Also, CS6 and earlier programs have not been tested and will not be updated to run on Mac El Capitan
-which means that you try to use CS6 and earlier at YOUR risk of having problems
-you may get CS6 and earlier programs to install and run, or you may not (some do, some don't)
Install CS5 on Mac 10.11 https://forums.adobe.com/thread/2003455 may help (also for other than CS5)
-also a TEMPORARY security change https://forums.adobe.com/thread/2039319
-and more on gatekeeper https://support.apple.com/en-au/HT202491
I go to "Terminal" to "repaired permission"... but it don't seems to be the right moove...
CS6 doesn't work under El Capitan??
I "repaired permission" with "terminal"... that s what I found here (http://www.macplanete.com/tutoriels/19147/reparer-les-permissions-el-capitan )... but didn't seems to be the right move!
CS6 doesn't work under El Capitan? ( should I remove it for Maverick?)
CS6 works for El Capitan so long as it's updated to 11.0.4