I'm getting error for 2 days. I'm getting error like below:
E: Could not get lock /var/lib/apt/lists/lock. It is held by process 1360 (packagekitd)
N: Be aware that removing the lock file is not a solution and may break your system.
E: Unable to lock directory /var/lib/apt/lists/
I tried restarting packagekit service. But it didn'T work.