How to fix E: Could not get lock /var/lib/apt/lists/lock. It is held by process 1044 (packagekitd)

Recently, I have bought a 64GB SD card for dual booting Ubuntu on my computer. It works at first, but when I try to run

sudo apt upgrade

It gives me this:

E: Could not get lock /var/lib/apt/lists/lock. It is held by process 1044 (packagekitd)

I have tried the following:

sudo apt autoremovesudo apt cleansudo apt autoclean

But it still gives me this error. Any help?