Error saying "error: dpkg frontend is locked by another process"

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I'm trying to execute the following command:

sudo apt-get install jenkins

And I get the following error:

E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?
Apr 15 in Jenkins by Pooja
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Hey!

First, find out the id of the process that is holding the lock file.

lsof /var/lib/dpkg/lock-frontend

The above command will give you the PID of the processes using the lock files. Use this PID to kill the process.

sudo kill -9 PID

Now you can remove the lock and reconfigure dpkg:

sudo rm /var/lib/dpkg/lock-frontend
sudo dpkg --configure -a
answered Apr 15 by Vedant

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