najeeb@najeeb:~$ sudo apt-get upgrade
[sudo] password for najeeb:
Reading package lists... Error!
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_trusty-        security_main_i18n_Translation-en
E: The package lists or status file could not be parsed or opened.