I upgraded to Lightroom 6 from 5.7 6 months ago. Today, Lightroom 6 has seemingly disappeared from my hard drive. It shows up in the control panel uninstall panel. OS is Windows 10. I can open 5.7 version but I have an extensive library on Vers 6 that I have spent countless hours on. The error message states "unexpected error opening catalog" Need assistance please.
Are you getting this error when you try to start Lightroom 6? Or, is it when you try to start Lightroom 5.7?
When I attempt to open Lr 6