I cannot import raw files from my Nikon D7100. There is a plug-in to allow this but I cannot find where it is to install it. Can anyone help? My version of LR5 is up-to-date. I am using a Mac OS 10.8 and installed LR5 from a download from Adobe yesterday. I can imprt raw files from my Nikon D80 but not the D7100. The files are all on my hard drive.
No plug-in is needed to import RAW files from a Nikon D7100 to LR5.
However, if you have used certain versions of Nikon software to move the photos from the camera to a hard disk, then this may be interfering, and causing LR to not recognize the photos. The solution is to import directly from the camera card to Lightroom (if the photos are still on the camera card), or if not try http://owl.phy.queensu.ca/~phil/exiftool/fix_corrupted_nef.html
This fixed my problem. I wont use Nikon Transfer 2 again. Thanks for the info and the timely response!