when I try to open my lightroom application on my pc a box comes up that says "the lightroom catalog named "lightroom 5 catalog" cannot be opened because another application already has it opened. quit the other copy before trying to launch."
when I hit the choose another catalog button it will not let me open the app no matter what I do. help please!! I have pics I need to get out to a client!
In your operating system, go to the folder where your Lightroom catalog is located. The catalog file name ends with .LRCAT.
In that folder is a file whose name ends with .LOCK. Delete the .LOCK file. Do not delete anything else.