Lightroom Cannot Open

Forum|Forum|8 months ago
August 8, 2025
3 replies
1042 views

I can no longer open Lightroom CC on my PC. It has worked fine for many years, but for about maybe two years I have not used it much at all, so it has been more or less dormant. I've used Lightroom on my phone instead.

Three-four weeks ago I tried to open it again, but something seems to be wrong. I cannot find an answer on what it can be and how to solve the problem. I've tried to follow instructions I have found on Adobe's site (delete certain files, re-install LRCC, try an older version...) but nothing of that works.

Once, a week ago, I could open LRCC when I opened it after I right-clicked on a photo and chose "Open with LRCC, but before that and now also after that time, it does not work. I've also tried to right-click on that photo and on other photos to try to open it. Here is what happens:

When I attempt to open LRCC I get a message saying "Lightroom Catalogue" is damaged and it seems to try a repair, but it always abruptly ends and I get "Assertion failed" and then there is nothing more.

I can open Premiere Pro, Lightroom and Photoshop (which lags alot on my PC and now yesterday, it seemes as if it cannot be opened either. I tried today too but nothing happens).

What is it that prevents LRCC and now also PS from opening?

Windows

C

Cygnus_200Author

Participating Frequently

Is there a way to edit previous posts? I wanted to say that PS seems to be working today. I could open it now. Yesterday and the day before, it did not. It was as described in the post below "...the wheel spins breifly, disappears and... doesn't open."

AxelMatt

Community Expert

@Cygnus_200 Yes you can edit your posts. Click on "More" under the appropriate post and then "Edit comment"

Screenshot is from a German system.

My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 25H2 -- LR-Classic 15 - Photoshop 27 - Nik Collection 8 - PureRAW 6 - Topaz Photo AI

C

Cygnus_200Author

Participating Frequently

Thank you. Something must be wrong with my system, because I do not have that....

dj_paige

Legend

When I attempt to open LRC I get a message saying "Lightroom Catalogue" is damaged and it seems to try a repair, but it always abruptly ends and I get "Assertion failed" and then there is nothing more.

You cannot open a damaged catalog. Try restoring a recent backup of your catalog file and open that; or try opening LrC with a blank new catalog (hold down the Ctrl key when starting LrC).