P: After the new version "update” today — “Unexpected error opening catalog.”

I also tried a different user account, deleted all Adobe with Adobe Cleaner and manual, reset user permissions with Adobe script and manually, etc. No luck resolving the permissions issue after multiple attempts. 

@sunil_bhaskaran same issue for me. I upgraded, and on launch I get this error. New catalogs, old catalogs, nothing works, LrC cannot make a new one, it makes a new folder but fails to make a new catalog, it loops and my only choice is to quit.

When run in terminal I get this, look at "bad argument #1 to 'update' (string expected, got nil)" as that looks like it might point to something...

/Applications/Adobe\ Lightroom\ Classic/Adobe\ Lightroom\ Classic.app/Contents/MacOS/Adobe\ Lightroom\ Classic 

2020-10-27 22:02:18.666 Adobe Lightroom Classic[3514:103189] Throttle bucket for current UUID is 92.000000

2020-10-27 22:02:18.693 Adobe Lightroom Classic[3514:103189] AdobeCrashReporterInitialize: executionTime = 0.032383 seconds

2020-10-27 22:02:18.713 AdobeCRDaemon[3517:103231] CR dialog Preference for force quit 1

2020-10-27 22:02:20.135 Adobe Lightroom Classic[3514:103189] Lightroom might have encountered user permission issues due to bad installation.   bad argument #1 to 'update' (string expected, got nil)

2020-10-27 22:02:20.135 Adobe Lightroom Classic[3514:103189] Lightroom might not work correctly if you continue without correcting the issues.

2020-10-27 22:02:20.135 Adobe Lightroom Classic[3514:103189] Visit    http://www.adobe.com/go/lr_user_permission_issue

Thanks a lot for your help, it worked 🙂

If you can't get your work done, here's the best advice you'll ever get: hire an IT guy to come over! All corporate workers benefit from deskside IT support, to think you can fix everything yourself is folly. In a corporate setting, the decision to upgrade would NOT be your choice.

Best of luck to you all, don't give up on Adobe, just don't upgrade until you get the "all clear"from Jeff Harmon (Photo Taco Podcast) or Victoria Bampton (Lightroomqueen.com).

@gratefulmomof3 Then you're in the wrong thread, most of these people are on V10. Call your IT guy for a visit, or get an IT guy and then call them?

In my case when LrC 10 opens after the installation it does not ask to upgrade the catalogue.  I get the "Unexpected error" message.  The only option after that is to close the program.  My locate is also located in the same place as my pictures along with the other associated files.  Restarting and resetting preferences do not help.  Going back to LrC everything works fine.  I have gone through this process numerous time all with the same result.

*Saaggo This blog explains too:

https://www.lightroomqueen.com/roll-back-update-previous-classic/

Greetings Sunil!

I went back to the previous version of LrC, v9.4.

I removed the previous lrcat I had used for the v10.0 of LrC and now use a backup of the day before.

To answer your previous questions:

- I could not create a new catalog; nor choose another option where LrC "hung" and I had to close LrC via command+option+esc;

- my lrcat is located in the folder where all pictures are stored per download (also with .lrdata, lrcat-wal, helper, ...).

- restarting didn't help either, even resetting the parameter ram (command+p+r)

Have a nice day!
Bert

Hi,

If you still face this issue, could you please comment here.
We assume:
When you open the existing catalog in Lightroom Classic 10.0, you are asked to upgrade. The catalog gets upgraded and while opening, the error message is thrown.

• Can you create a new catalog in Lightroom Classic 10.0 (using the Choose a Different Catalog option)?
• Where is your catalog location?
• After copying the catalog file (file with the .lrcat extension) to a new location, can you open it?
• What happens after a machine restart?

Thanks,
Sunil

After working without problems yesterday my LrC reverted today and refused to open my catalog. Shutdown and restart got it back again. Evidently something wrong with the most recent installation and/or catalog format.