Unsupported certificate error

[NIIBE Yutaka]

Hello,

On 03/21/2015 06:29 AM, David wrote:
> 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
[...]
> Has anyone seen this and solved it?

If I understand correctly, your gpg-agent is not the real one, but
gnome-keyring.  "Unsupported certificate" is the typical error message
when gnome-keyring takes over.

How to fix this issue depends on the specific version of gnome-keyring.

Please see:

    http://www.gniibe.org/memo/notebook/gnome3-gpg-settings.html

I think that nobody asked gnome-keyring to do that, and nobody expects
gnome-keyring to do that.
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