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. ... View more

on another note, 10.1.1 works fine, except that I can't export a PDF from the Book Module. Someone suggested clicking and unclicking the graphics box, which I tried, but that function is still not working. ... View more

i've been having the same problem going back a few months ... View more

yes. and can you explain why a backup would not have the same corrupted files on the current catalogue if i've been having the same problem going back a few months? ... View more

Based on the premise that a hard disk malfunction may have corrupted the catalogue, (it runs fine in 10.1) is there any way to clean up the catalogue so I can open it with 10.2? ... View more

I'm having the same problem, and copying the catalogue backup to a new folder and trying to open from there doesn't work....i also ran diagnostics on my hard drive and repair permissions (on a Mac) and nothing turned up there.  ... View more

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. ... View more