How to fix “Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 11022”

Run these commands one by one.

sudo lsof /var/lib/dpkg/lock
sudo lsof /var/lib/apt/lists/lock
sudo lsof /var/cache/apt/archives/lock

You can now safely remove the lock files using the commands below:

sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock

After that, reconfigure the packages:

sudo dpkg --configure -a

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