i screwed up. in an effort to organize my files, i moved them on my hard drive in folders. now when i open lightroom it can't find my files. now i understand that i could have moved them right in lightroom, which i actually know but didn't think about. how do i get lightroom to see all my reorganized files? thanks!
If you did all the reorganizing by just moving folders, in the Folders panel right-click on the top-most folder marked as missing "?" and select "find missing" or "relocate" or whatever the appropriate text is.