Lightroom classic doesn't open

I also have a weird issue with both Lightroom and Lightroom Classic.

TLDR: Lightroom seems to have permission-related issues on macOS Sonoma.

I last used Lightrooms in December or early January, and it was ok. Suddenly, it's broken.

- Lightroom Classic sees any catalog (even backups stored in NAS) as corrupted

- I can't create a new catalog in a default location (~user/Pictures/)

- I can create a new catalog outside a default location, and then it works

- Sometimes the error says simply that Lightroom has no access to (~user/Pictures) - even if it has all needed permissions in macOS settings and even extra ones, I would say 🙂

- A 2-hour-long remote session with an Adobe technician didn't help solve that problem

- Lightroom CC stopped showing my photos stored in the cloud

- Add Photos button is disabled in Lightroom CC

I tried to clean my Mac manually using AppCleaner / CleanMyMac, but nothing helped.

I also ran a script to fix some permissions but had no luck here.

Now it's even worse - I installed the whole Adobe CC from scratch (again), and Lightroom displays an internal error as it can't save the library file. I managed to change the path, but no luck again (press ESC when the error dialog appears – clicking the button will close the whole app).

hmmm issue with MACOS user account.

Yes, it can be very hard to fix that, Many would just state, create a new one and move on.

You may want to use the Internet, to use Google, and search on:

• How to repair a user account in MACOS
• How to rebuild a user account in MACOS
• How to fix a corrupted user account in MACOS
• etc.

Since it worked fine in anoyther user account, the problem is something in your main user account. This unfortunately can be many many things and it is almost impossible to figure that out through posts on forums. The first thing to check is whether if you look in system preferences -> Login items, you see anything that makes no sense in the login items section as well as the "allow in background" section. A clean install of mac os and creative cloud will only have Adobe creative cloud there. Other things there are not necessarily a problem but could explain the problem. Second would be to start console.app and look for error messages that come up when trying to start Classic. There should also be a crash log in console. 

Have you tried starting Classic with the option key pressed? It will throw up a dialog that allows you to test the integrity of your catalog file, choose a different catalog, or to start with a whole new catalog. First try testing the catalog integrity, second and if that doesn't help, try to start with a new empty catalog. If those don't help, try deleting the folder ~/Library/Caches/Adobe and the ~/Library/Caches/Adobe Camera Raw 2 folder in your home directory and any of the com.Adobe.xxx folders you can find in the same ~/Library/Caches folder. Those are all just temperary files that will get recreated but might be corrutped causing your classic to crash on startup.

Lastly, since your Mac supports it, Update to Sonoma and see if it helps. 

I am also having this same issue no matter what i do nothing happens and it wont open. I am running it on windows based. But still I'm losing my mind trying to figure this out.

Time to give Adobe a chat and be assertive in the chat that you need an actual Adobe Tech so that they can call you and assist.

As to that computer account having issues with LrC. Have you looked at:

https://helpx.adobe.com/lightroom-classic/kb/lightroom-basic-troubleshooting-fix-most-issues.html

Down towards the bottom, at "Troubleshoot user account permissions" and further down.

And you checked for and found no lock file left behind?

Try resetting the preferences: https://www.lightroomqueen.com/how-do-i-reset-lightrooms-preferences/