E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) [duplicate]

sudo rm /var/cache/debconf/*.dat

A solution to this locking problem is detailed in the wiki:

fuser -v /var/cache/debconf/config.dat

Will show you what process is holding the lock then you simply need to note down the PID and kill it like so:

sudo kill PID
sudo kill -9 PID  # if the first doesn't work