A Problem occured when checking for updates

view full story

http://askubuntu.com – I am using Ubuntu 12.10. I think my problem in downloading some applications are related to this problem. I can't download applications using terminal. This is what I get: A problem occurred when checking for the updates I already tried these: $ sudo aptitude update && sudo aptitude safe-upgrade sudo: aptitude: command not found $ sudo rm /var/cache/apt/*.bin no such file or directory $ sudo apt-get update && sudo apt-get upgrade E: type 'dev' is not known on the line 1 in the source list /etc/apt/sources/list.d/google.list E: the list of sources could not be read I wa (HowTos)