Unable to Lock The Administration Directory (/var/lib/dpkg/)

Unable to Lock The Administration Directory (/var/lib/dpkg/)

- June 15, 2018

This should be used as last resort. If you use this carelessly you can end up with a broken system.

You can delete the lock file with the following command:

sudo rm /var/lib/apt/lists/lock

You may also need to delete the lock file in the cache directory:
sudo rm /var/cache/apt/archives/lock

sudo rm /var/lib/dpkg/lock

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