Unexpected Error Opening Catalog

[skyem72985099]

Issue=

I recive the following error when trying to open any Lightroom project on any of my harddrives (I've tested 6 drives all with the same error). Lighroom itself will not open on it's own. I cannot choose a new catalog and/or defalut catalog. I just recive the same error :

Working off of:

macOS Mojave Version 10.14.6

Mac Pro (late 2013)

Processor 3.5 GHz 6-Core Intel Xeon E5

Graphics AMD FirePro D500 3 gb

I work in Premiere / other Adobe programs regularly those are working fine. 

I have re started my computer - no change. 

I have unistalled and re-installed Lighroom- no change. 

Please advise - thank you. 

[dj_paige · Accepted solution]

Revert back to LrC 9.4. Reports indicate that can still read your LrC 9.4 catalog. https://helpx.adobe.com/download-install/using/install-previous-version.html

[skyem72985099]

Thank you, I will try this now

[skyem72985099]

This works! Thank you dj_paige

[skyem72985099]

* This is Lightroom Version 10.0 

[patm34529560]

Hi Skyem, did you ever manage to resolve your problem with Lightroom? I'm having the same problem with Lightroom 10.1 - when i try to update to 10.2, i get the same prompt as you did. Any thoughts on how to deal with this would be appreciated.

[dj_paige]

@patm34529560 

Please see the solution in this thread: https://community.adobe.com/t5/lightroom-classic/unespected-error-catalogue/m-p/11953165#M228470

[patm34529560]

I've tried everything you suggested and I still can't update to 10.2. Plus, in 10.1.1, I can't export from the Book module to a PDF. Blurb recommends this: If you cannot export your book to PDF you'll need to contact Adobe customer support for further help so they can troubleshoot within Lightroom.

[STKang]

Hi,

I am wondering if there is any update on solving this issue? I upgraded Lightroom Classic 10.1.1 to 10.2, and cannot open any old catalog. I tried to copy them in a new folder, but it doesn't work. I tried to roll back to Classic 10.1.1, but it does not work either.

Please advise - thank you!