Maybe you could check the sources list, as KPackageKit also suffers from:
TypeError: coercing to Unicode: need string or buffer, NoneType found
It seems, the python apt-backend-end tries to show an errormessage, if a source is invalid.
See bug #546607
Maybe you could check the sources list, as KPackageKit also suffers from:
TypeError: coercing to Unicode: need string or buffer, NoneType found
It seems, the python apt-backend-end tries to show an errormessage, if a source is invalid.
See bug #546607