Quote the entire error message, word-for-word.
Hi, Thanks. The entire message is "The following files were not imported because they could not be read. (201)". It is worth mentioning that the same files downloaded OK onto a windows operated system and I am now trying on a MAC.
Common problem on a MAC, less common on Windows based upon my reading of reports here in this forum
You do not have WRITE permission to the folder where Lightroom is trying to copy the photos to (this folder is set in the Import dialog box in the Destination Panel), so change your permissions.
For your future reference, the 201 is not the error code and is useless to us here, it is the number of photos that are affected by this error. So in the future, just provide the entire error message.
ok, done! Thank you!