Ubuntu-apt-get出错

ubuntu apt-get的时候出现:

E: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?

解决方法

sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock
sudo rm /var/lib/apt/lists/lock

最后再更新一下

sudo apt-get -y update