odd error installing claws addons

[Dave Stevens]

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.

Dave



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