I just bought a new mac and the apple store moved all my data from my old computer to the new one. However, when I go to open lightroom now on either computer it says it can not be located. It asks if I would like to locate an existing catalog or use the default one. Some of my lightroom photos were saved on my computer's hard drive while the rest are on an external hard drive. What should I do?
I would imagine you want to open your old catalog file. Select Open Existing Catalog and point to wherever your old catalog file is.