Lightroom won't launch! App is not responding

  • 1
  • Problem
  • Updated 2 months ago
I can't get Lightroom to launch. I have tried uninstalling and then reinstalling everything, including the cloud and I'm still only able to get the splash screen with a rainbow wheel. The app says it isn't responding and I have to force quit. I have the most recent version of Lightroom classic installed from the cloud and I use a MacBook Pro with OS 10.13.6. It was working for me and then stopped launching about a month ago and every time I chat with support they take over an hour and fix nothing. So frustrated!
Photo of jdavis4

jdavis4

  • 5 Posts
  • 0 Reply Likes
  • frustrated

Posted 2 months ago

  • 1
Photo of Carlos Cardona

Carlos Cardona

  • 284 Posts
  • 51 Reply Likes
Relax, probably a corrupt cache. Please give your Mac the "once over"! Run the free Onyx (https://www.titanium-software.fr/en/o...), make sure it’s the right version, reboot. (In Onyx just run everything in the Automation tab). Run Disk Warrior if you can ($120), (https://www.alsoft.com), reboot. If you can’t do Disk Warrior, at least run First Aid from Disk Utility. Also just doing a "Safe Boot" can clear out caches (restart, hold down shift until you see "Safe Boot" on the screen). Log in to your account, then reboot (no Safe Boot). OK now?
Photo of jdavis4

jdavis4

  • 5 Posts
  • 0 Reply Likes
I'm not sure I ran the Onyx software correctly...this was all a little over my head.  I ran the First Aid from Disk Utility and did the safe boot, but nothing seemed to happen
Photo of Carlos Cardona

Carlos Cardona

  • 284 Posts
  • 51 Reply Likes
Just click on the automation tab in onyx, select all and hit run!
Photo of Rikk Flohr

Rikk Flohr, Official Rep

  • 3816 Posts
  • 717 Reply Likes
A Preference File will survive a Lightroom uninstall/reinstall. Sometimes weird behavior is corrected/cured by resetting the preferences. 

Reset Procedure:

1. Close Lightroom.
2. Hold down [Alt/Opt]+[Shift] while restarting Lightroom. 
3. Overwrite the Preferences when prompted by the dialog.
4. Close Lightroom.
5. Restart Lightroom.

Does the failure to launch behavior continue after resetting the preferences?
Photo of jdavis4

jdavis4

  • 5 Posts
  • 0 Reply Likes
I followed your instructions and reset preferences and it's still giving me the rainbow spinner.  I can only close by force quitting. 
Photo of Victoria Bampton - Lightroom Queen

Victoria Bampton - Lightroom Queen, Champion

  • 4300 Posts
  • 1563 Reply Likes
A long shot, but quit LR, move the following folders to the desktop (or somewhere out of the way) and then try Lightroom and see if it works:
Macintosh HD / Users / [your username] / Library / Application Support / Adobe / Lightroom /
Macintosh HD / Users / [your username] / Library / Application Support / Adobe / CameraRaw /
and any Lightroom Settings folders next to your catalogs too.

That will (temporarily) remove all presets. It's a long shot, but a corrupted preset appears to be the cause of an identical issue on someone else's computer, and the timing would coincide with some preset format changes.
Photo of jdavis4

jdavis4

  • 5 Posts
  • 0 Reply Likes
ok, moved them onto my desktop and opened Lightroom again and still the same issue...ugh
Photo of jdavis4

jdavis4

  • 5 Posts
  • 0 Reply Likes
Could it be something to do with the latest version of Lightroom not being compatible with the latest version of macOS High Sierra?
Photo of Carlos Cardona

Carlos Cardona

  • 284 Posts
  • 51 Reply Likes
Nope, runs fine on my High Sierra iMac.