My Lightroom catalog cannot be opened "because another application already has it opened"
I have no idea why this happens, I have shut down the computer several times, and there really cannot be any application that has it opened.
I have now made a new catalog, but I'm not still able to open the older catalog, still the same reason. Why this happens, what application could this be? And how can I relaunch the older catalog OR bring the back ups to the new catalog?
