[scribus] No File Loader Plugins Found

[Giovanni Mugnai]

Hi, when i attempt to load any *.sla or *.sla.gz Scribus told me that
the file is damaged or that have been produced in a later version..
This happen with any file. Also i can't save any file (i can only
export to pdf)

If i start Scribus form terminal, every time that i click on "Open" i
can see the message "No File Loader Plugins Found"; and i think that
this could be related..
I miss something?

-- 
Giovanni.