Comment 35 for bug 49533

I have almost the same crash log.

Traceback (most recent call last):
  File "/usr/bin/ubiquity", line 130, in ?
    install(sys.argv[1])
  File "/usr/bin/ubiquity", line 55, in install
    ret = wizard.run()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/kde-ui.py", line 311, in run
    self.process_step()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/kde-ui.py", line 731, in process_step
    self.gparted_to_mountpoints()
  File "/usr/lib/python2.4/site-packages/ubiquity/frontend/kde-ui.py", line 804, in gparted_to_mountpoints
    print >>self.qtparted_subp.stdin, "apply"
AttributeError: 'NoneType' object has no attribute 'stdin'

I'll tried to install kubuntu manually but at t the moment i had to start to make a partition the crash occurred.
i have a win xp partion and a linux swap file, a linux ext3 partion and a empty part on the disk plus a grub bootloader.