I run sudo apt-get update but it returns:
E: Malformed line 61 in source list /etc/apt/sources.list (dist parse) E: The list of sources could not be read.
I opened the sources.list via vim /etc/apt/sources.list
and Line 61 is : deb-src http://extras.ubuntu.com/ubuntu quantal partner
How can I correct this as I cannot install even software center?