This is properly caused by
_("Some third party entries in your sources.list "
and with this it imay be
http://ppa.launchpad.net/hrw/my-own-packages/ubuntu
your own ppa that makes trouble.
This is properly caused by
_("Some third party entries in your sources.list "
and with this it imay be
http:// ppa.launchpad. net/hrw/ my-own- packages/ ubuntu
your own ppa that makes trouble.