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 code example

Example 1: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

ps aux | grep -i dpkg

// Kill processes which are running
sudo kill -9 <pid>

// Restart the accounts daemon
sudo systemctl restart accounts-daemon

Example 2: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?

For godaddy users. Please check if your firewall is not blocking port number
2224 which can essentially lead to file permission issue even you are logged in
as the root user.

https://in.godaddy.com/help/unblock-ports-required-for-my-gen-4-server-27924