If you move image files in the Finder (Mac OS) or Explorer (Windows), the link between the files and the Lightroom catalog breaks. When a catalog can't find a photo, Lightroom displays a Photo Is Missing icon in image cells in the Grid view and the Filmstrip. The Photo Is Missing icon is an exclamation point () in Lightroom 5 and a question mark () in earlier versions of Lightroom. In the Develop module, Lightroom indicates that the photo could not be found, or is offline or missing.
Follow the steps below to help locate your missing photos and restore links to the catalog.