[Qt-creator] Saving session problem

[Christian Wansart]

Hi,

I run Archlinux with Xfce on my computer and use the QT Creator 
downloaded from the QT website.
Compiling, using etc. works well, but when I want to close QT Creator I 
get an error:
 > Could not save session to file 
/home/christian/.config/Nokia/qtcreator/default.qws

Google doesn't provide any answer to this issue.
Does somebody know the answer?

Regards,
Christian Wansart