بعد از زدن دگمه next برنامه بسته میشه و این پیام خطا رو تو terminal نشون میده:
QPaintDevice: Must construct a QApplication before a QPaintDevice
Use of uninitialized value $ret in scalar chomp at /usr/share/perl5/Debconf/Client/ConfModule.pm line 132.
Use of uninitialized value $ret in split at /usr/share/perl5/Debconf/Client/ConfModule.pm line 133.
Use of uninitialized value $ret[0] in string eq at /usr/share/perl5/Debconf/Client/ConfModule.pm line 134.
tasksel: aptitude failed (1)
ubuntu 9.04 رو سیستمام نصبه