8 Replies Latest reply on Feb 15, 2016 11:26 AM by adamf64143805

    assertion failed lightroom 5.7


      Hi, I have received the following error whilst attempting to open Lightroom 5.7 "assertion failed". I am running windows 10, but believe the problem is not due to updating operating system (it has worked fine for sometime since I upgraded). Rather, Lightroom seems to be trying to open a catalogue which has been deleted ("opening catalogue..." appears at the same time as the "assertion failed" message). How can I fix this issue to open lightroom once again? Cheers.