Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)

 

第一次鼓捣Docker，- - !

 

报错：

server@ubuntu1987:~$  sudo apt-get update
E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable)
E: Unable to lock directory /var/lib/apt/lists/