masalah dgn Update manager package

masalah dgn Update manager package.,,

[Could not initialize the package information

An unresolvable problem occurred while initializing the package information.

Please report this bug against the 'update-manager' package and include the following error message:

'E:Type 'main' is not known on line 2 in source list /etc/apt/sources.list.d/zekr-ppa-lucid.list, E:The list of sources could not be read.']

cuba pakai terminal. taip command ni.

sudo aptitude update

pastu ni.

sudo aptitude safe-upgrade

masih tak dapat la....tolong....

sabfumi@sabfumi-laptop:~$ sudo aptitude update
E: Type 'main' is not known on line 2 in source list /etc/apt/sources.list.d/zekr-ppa-lucid.list
E: Type 'main' is not known on line 2 in source list /etc/apt/sources.list.d/zekr-ppa-lucid.list
E: The list of sources could not be read.
E: Type 'main' is not known on line 2 in source list /etc/apt/sources.list.d/zekr-ppa-lucid.list
E: The list of sources could not be read.
E: Type 'main' is not known on line 2 in source list /etc/apt/sources.list.d/zekr-ppa-lucid.list
E: Couldn't read list of package sources
sabfumi@sabfumi-laptop:~$

cuba ni

gksu nautilus /etc/apt/sources.list.d

pastu cari "zekr-ppa-lucid.list" dan delete fail tu. lepas delete, cuba update macam biasa.