Package manager
If you get the error :
E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
You can try two soltutions.
Kill the process owner.
pgrep -a apt
sudo kill processnumber
Erase the file.
sudo rm /var/lib/apt/lists/lock