Forgive me if this question has been repeated by me as I am new to the forum and when I ask this question I keep being directed to this sight. I am not computer savvy. I had an internal hard drive installed in my macbook pro 15 inch in place of my optical drive in order to give me more storage space. Per apple's instructions I then copied and moved Lightroom v3.6 to the new 1 TB drive. I then deleted Lightroom from the older smaller internal drive. Now when I open Lightroom in the new drive all the photos say file is "offline or missing' and can not be used. Can anyone explain this and tell me how I can use the files in Lightroom. 99% of them were raw files from either a 12 or 18 MP camera.
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