This message was posted on behalf of Intel Corporation
Thanks for your interest in the Intel® Joule Platform.
We appreciate all the information provided, and we would like to let you know that we are going to investigate a little bit more your issue and as soon as we find useful information we’ll let you know.
We’ll appreciate your patience during the meantime.
Thank you for your acknowledgement.
It actually looks like I have nobody to blame but myself: I've since tried upgrading by Ubuntu Linux distribution from 14.04 to 16.04 (which your setup guide lists as a requirement) and am already seeing some success: I no longer am greeted with the docker error immediately upon trying to finalize the Project Setup.
I will let you know if the problem persists, but in the meantime you can consider my issue closed. I will tag the question as Resolved.