1 person found this helpful
You need at least LR 6.0 to work with D7200 raws.
Or you can use the DNG Converter to create DNGs from the NEFs and those DNGs will open in LR:
Make sure you don’t touch the new camera’s NEFs with older Nikon software like Nikon Transfer or ViewNX otherwise they will be corrupted and unrecognizable to Adobe software even if you do use new enough versions.
This camera model was supported from Lightroom version 6. You either need to upgrade to version six or utilise the Adobe DNG Converter (free from Adobe) to convert the .nef files to dng format and then you can use the Lightroom version five to work with the dng files. See the link below.