After converting to lightroom 5 on a new computer (had lightroom 2 on a very, very old mac and did not have registration id so had to purchase all over again) about 5000 of my photos will not transfer. They show up in the catalog but with an exclamation point in the upper right hand corner. The exclamation point notes "“IMG_0295.jpg” could not be used because the original file could not be found. Would you like to locate it?". I can't do this for 5000 photos. How can i fix this and gain access to my photos? All the photos are backed up in my raw images folder....but obviously unmanageable there.
Did you actually COPY all your images from the old computer to the new computer? The LR catalog is just a Database file and does not contain the actual images.