Please check these links and follow the instructions -
- Lightroom: "An error occurred when attempting to change modules."
- Downloaded standalone lightroom 6 on a MacBook Pro. Can't get program to open - an internal error has occurred cannot cr…
Oh, thank you! I'm on my way to check it out...
Thank you for the suggestion, Rohit. I did try; changed the preferences to "Everyone" and restarted the computer, still no change
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Did you try all the instructions mentioned in the first link.
Also please check your hosts file and if you have any adobe entries in there, get rid of them.
- How to edit your Mac's Hosts file, and why you would want to | iMore
- Beginner Geek: How To Edit Your Hosts File