I am a new LR user. I bought a raid drive to store photos. I must be importing to the drive incorrectly. I have been getting messages in the develop mode that says can't find image. When I import to LR, I create a folder in my WD My Cloud picture folder, go to LR, navigate to that fold in destinations (since it doesn't show up in public) and import. I'm sure there is not the best way to do this! Thanks for helping!
This should work. Show us a screen capture of the Import dialog box so we can see (and read) the Destination section.
However, many people report problems using the WD My Cloud with Lightroom, for example see Re: LR6 does not recognize WD MyCloud Mirror