"The application cannot be installed due to a certificate problem. The certificate does not match the installed application certificate, does not support application upgrades, or is invalid. Please contact the application author."
when I install the 6.2.1 version for CS5 on macbook. I had the latest version of Adobe Air. I can use the plugin but not the production tool, and MIB optimizer too (it says : You can't open the application Mag+ MIB Optimizer because it may be damaged or incomplete.) Before it i use version 5.2.1 and it's fine.
I tried to reinstall the 6.2.1 and restart the macbook but still got the same result. Does anybody know what's going on and what should I do? -Thank's