Unable to get exclusive lock

Showing display:

This message is telling you that there is a lock file preventing your package manager from getting exclusive access. It occurs when your power goes out, etc, before they are completed, the lock file remains and the next manager believes another manager is already running.

So it’s probably that some update process happening behind, somthing that’s unfinished.

Try the following command:

apt-get clean

apt-get -f update

It will clear the cache and terminate any unfinished business and restart again.

If still getting same error, use command:

ps -ax

It will show list of current running process.

To terminate running process use command:

sudo kill <process number>

Hopefully this method will work.Gudluck!