Docker,无法连接到Docker守护程序.是在此主机上运行的Docker守护程序



macOS sierra 10.12.2

docker 1.12.5

新的Docker,每次我尝试构建Docker文件时都会出现此错误:

$ sudo docker build -t tutorial .
Cannot connect to the Docker daemon. Is the docker daemon running on this host?

我遵循此帖子的说明,但问题没有解决:Docker无法连接到Docker守护程序

docker版本:

$ docker --version
Docker version 1.12.5, build ...

目录:

$ ls
Dockerfile  README.md   apache      supervisord

启动Docker的虚拟机:

$ docker-machine start
Starting "default"...
Machine "default" is already running.
...
$ docker-machine env
export DOCKER_TLS_VERIFY="1"
export DOCKER_HOST="tcp://192.168.00.00:2576" #edit
export DOCKER_CERT_PATH="/Users/myUser/.docker/machine/machines/default"
export DOCKER_MACHINE_NAME="default"
# Run this command to configure your shell: 
# eval $(docker-machine env)
...
$ eval "$(docker-machine env default)"

再次运行:

$ sudo docker build -t tutorial .
Cannot connect to the Docker daemon. Is the docker daemon running on this host?

已解决:没有sudo

$ docker build -t tutorial .

尝试在没有sudo的情况下运行此命令docker build -t tutorial .或使用sudo

运行eval "$(docker-machine env default)"

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