泊坞窗：在连接过程中

Question

我得到每当我试图用RSelenium包

shell('docker run -d -p 4445:4444 selenium/standalone-chrome') 
docker: error during connect: Post 
http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.30/containers/create: open //./pipe/docker_engine: The system cannot find the file specified. In the default daemon configuration on Windows, the docker client must be run elevated to connect. This error may also indicate that the docker daemon is not running. 
See 'docker run --help'. 
Warning messages: 
1: running command 'C:\Windows\system32\cmd.exe /c docker run -d -p 
4445:4444 selenium/standalone-chrome' had status 127 
2: In shell("docker run -d -p 4445:4444 selenium/standalone-chrome") : 
    'docker run -d -p 4445:4444 selenium/standalone-chrome' execution failed with error code 127 

Answer 1

检查未正确设置泊坞窗环境变量的状态，请执行上面的错误错误。请，请与下面的命令，

docker-machine env box 

（注：默认情况下，泊坞窗机的ENV集是默认值）

否则，你可以将其设置为像下面

$ set | grep DOCKER 
DOCKER_CERT_PATH=C:\Users\mohan\.docker\machine\machines\deis 
DOCKER_HOST=tcp://192.168.99.100:2376 
DOCKER_MACHINE_NAME=deis 
DOCKER_TLS_VERIFY=1 
DOCKER_TOOLBOX_INSTALL_PATH=C:\Program Files\Docker Toolbox 

$ docker-machine ls 
NAME ACTIVE DRIVER  STATE  URL       SWARM  DOCKER  ERRORS 
deis *  virtualbox Running tcp://192.168.99.100:2376   v17.03.0-ce 

$ docker ps -a 
time="2017-03-23T11:11:55-07:00" level=info msg="Unable to use system certificate pool: crypto/x509: system root pool is not available on Windows" 
CONTAINER ID  IMAGE    COMMAND    CREATED    STATUS    PORTS    NAMES 

$ docker pull busybox 
time="2017-03-23T11:13:07-07:00" level=info msg="Unable to use system certificate pool: crypto/x509: system root pool is not available on Windows" 
Using default tag: latest 
latest: Pulling from library/busybox 
7520415ce762: Pull complete 
Digest: sha256:32f093055929dbc23dec4d03e09dfe971f5973a9ca5cf059cbfb644c206aa83f 
Status: Downloaded newer image for busybox:latest 

希望这会起作用。