yum install -y docker-ce-18.03.1.ce失敗解決辦法

yum install -y docker-ce-18.03.1.ce失敗

Transaction check error:
  file /usr/bin/docker from install of docker-ce-18.03.1.ce-1.el7.centos.x86_64 conflicts with file from package docker-common-2:1.12.6-68.gitec8512b.el7.centos.x86_64
  file /usr/bin/docker-containerd from install of docker-ce-18.03.1.ce-1.el7.centos.x86_64 conflicts with file from package docker-common-2:1.12.6-68.gitec8512b.el7.centos.x86_64
  file /usr/bin/docker-containerd-shim from install of docker-ce-18.03.1.ce-1.el7.centos.x86_64 conflicts with file from package docker-common-2:1.12.6-68.gitec8512b.el7.centos.x86_64
  file /usr/bin/dockerd from install of docker-ce-18.03.1.ce-1.el7.centos.x86_64 conflicts with file from package docker-common-2:1.12.6-68.gitec8512b.el7.centos.x86_64

卸載舊版本的包

yum erase docker-common-2:1.12.6-68.gitec8512b.el7.centos.x86_64

再次安裝 docker

yum install -y docker-ce-18.03.1.ce

docker version報錯

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

運行如下命令

systemctl daemon-reload
sudo service docker restart
sudo service docker status