I believe this is a common issue. I only have access to bluetooth connection from the Port Menu. I tried several solutions online including installing FTDI Drivers. This website indicates that there could be conflict with my OS Sierra on Mac: How to Install FTDI Drivers - learn.sparkfun.com.
I previously uninstalled and reinstalled arduino two times. First I updated it from a version some years ago. I uninstalled the update for a reason I forgot and deleted all the appropriate files I could find with guidance from a post on this site.
The second reinstall works better but as I indicated I only have bluetooth available as a port option.
Could someone indicate a post or article appropriate to my OS? Any advice is appreciated.