[Evolution] Cannot get folder 'Sent': folder does not exist.

[Joao Ferreira Gmail <joao miguel c ferreira gmail com>]

Hello,

after upgrading my Debian box I started getting this error message
everytime I send an e-mail

=========================================
Your message was sent, but an error occurred during post-processing.

The reported error was "Failed to append to
mbox:/home/jmf/.local/share/evolution/mail/local#Sent: Cannot get folder
'Sent': folder does not exist.
Appending to local 'Sent' folder instead.".
=========================================

evolution                            3.0.2-1
evolution-common                     3.0.2-1

Immediately after upgrading, when I started evolution I got a message
saying something about "I need to make some conversion..." which I
accepted.

Is there something wrong ?

Can I make the message stop appearing ?

thx
Joao (evolution user since 2001; I love it;)