odd error installing claws addons

[Colin Law]

On 20 March 2015 at 01:32, Dave Stevens <geek at uniserve.com> wrote:
> I'm using Ubuntu 14.04 software centre to istall a tnef attachment handler
> add-on and get an unmet dependency error with details as follows:
>
> "The following packages have unmet dependencies:
>
> claws-mail-tnef-parser:i386: Depends: claws-mail (= 3.9.3-1ubuntu1) but
> 3.9.3-1ubuntu1 is to be installed"
>
> This doesn't make sense to me, does anyone know what the issue is or what to
> do? It happens with some other add-ons too.

That does seem odd.  What do
apt-cache policy claws-mail-tnef-parser:i386
and
apt-cache policy claws-mail
show?

Colin