ubunto18.0.1安装后无法运行

root@ktwlprint:~# phpstudy -start

starting..

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error: failed to start containers: centos_env

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error: failed to start containers: centos_env

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error: failed to start containers: centos_env

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error: failed to start containers: centos_env

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

Error: failed to start containers: centos_env

一直这样提示。又大神可以教我怎么操作嘛？