After trying somefixes I still get the error:
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
After trying somefixes I still get the error:
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
Enter terminal (Ctrl+Alt+T) and run
sudo killall dpkg
There are a few programs that may be using it, try to discover them and post an edit. And more, you said After trying all of these fixes, but which fixes? Please be more specific, if you are refering to another question post its link here.