lightroom 6 won't open in 10.10.3

Soved! You need to sign out of the CC app then sign back in again. Click the cog, then preferences -> Sign Out

Thanks. Tried, and it worked.

Same problem here. D/L LR6 and then close CC as you describe. Still won't launch. rMBP 10.10.3

Don't close CC, just sign out, then sign back in again.

That worked!

Thanks a bunch!

Thanks. I bet Adobe gets a crap load of calls about that!

Worked a treat. Kudos and thanks. I feared hours of frustration.

No joy here.. signed in and out and done a restart.... nothing

Worked for me, but I had to sign in and out twice.

This did it for me, not good Adobe, not good, this shouldn't be required, especially since just closing and re-launching creative cloud doesn't work.

Same problem and same fix for OS X 10.9.5 - Thanks all for the pointer. Adobe should be ashamed with themselves, one step closer to being Microsoft!

Worked Great, Thank You Dan...

Just been given a fix by adobe .. On mac 10.10.3 yosemite

Sign out of cc

Press Command-Shift-G and type /Library and hit enter.

Navigate to Application Support/Adobe

Open SLCache folder and delete all the contents.

Go back and open SLStore folder.

Delete all the contents there.

Open the Creative Cloud app again and sign in.

Open Lightroom now.

Thank Dan, this helps!

Thank you for this tomhphoto! Spent hours trying everything I could think of, and this finally fixed the issue. Nice to know it also reset my trial back to 30 days.