Ubuntu Docker无法运行

我按照这里的指示：

但是得到这个错误：

docker -d
flag provided but not defined: -d
See 'docker --help'.

docker run -i -t appscale/appscale:latest /bin/bash
docker: Error response from daemon: failed to create endpoint stoic_easley on network bridge: adding interface vethe517512 to bridge docker0 failed: could not find bridge docker0: route ip+net: no such network interface.

现在我无法运行docker并抛出以下错误：

docker -d
flag provided but not defined: -d
See 'docker --help'.

docker run -i -t appscale/appscale:latest /bin/bash
docker: Error response from daemon: failed to create endpoint stoic_easley on network bridge: adding interface vethe517512 to bridge docker0 failed: could not find bridge docker0: route ip+net: no such network interface.

是从2013年开始的，是旧版本的

如果需要重新启动docker守护进程，可以执行以下操作

sudo restart docker

或