ubuntu2020:Could not get lock varlibdpkglock-frontend.

ubuntu2020:Could not get lock /var/lib/dpkg/lock-frontend.

ubuntu发生如下错误：

解决方法：

sudo killall apt apt-get
sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock*
sudo dpkg --configure -a
sudo apt update