Unsupported certificate error

[David]

I just installed GnuPG 2.0.27 on my Ubuntu 14.10 laptop.  I am getting
this error from gpa:

The GPGME library returned an unexpected
error at keytable.c:150. The error was:

    Unsupported certificate

This is either an installation problem or a bug in GPA.
GPA will now try to recover from this error.

I have researched it a bit and it seems to either be due to a MD5
certificate or a conflict between gnome-agent and the gpa-agent.

Has anyone seen this and solved it?