Ubuntu: How to solve “Could not get lock on /var/lib/dpkg/lock“ problem ?

This one of the most frequent problems that arises while updating the installation packages. In order to solve this problem we need to remove the lock file from dpkg directory.as well as cache directory. After removing the lock we can update the packages without any error.

Remove Lock from dpkg    :     sudo rm /var/lib/dpkg/lock

Remove Lock from cache   :     sudo rm /var/cache/apt/archives/lock

Update packages                :     sudo apt-get update

Upgrade packages              :     sudo apt-get upgrade