I have Lightroom 6 and recently bought a new Tamron 17-35mm f/2.4 OSD lens for a Nikon full frame. I downloaded a recent version of Adobe Camera Raw to get the LCP file for the Tamron lens and I have copied this into the Lightroom/resources/lens profile/1.0/Tamron/Nikon folder but Lightroom refuses to list this as an available lens profile. How do I get the profile to show in the list as an available option?
Since you are using forward slashes, i'm going to assume you are on a mac.
In this case, google tells me that the path your .lcp files should go into is
Macintosh HD / Users / [your username] / Library / Application Support / Adobe / CameraRaw / Lens Profiles