删除%appdata%\Docker下的文件夹，如Github问题所示

为了快速访问，按Ctrl+R，粘贴“%appdata%\Docker”，然后Enter，它应该打开一个文件夹位于appdata \Roaming\Docker(例如C:\Users\YourUsername\ appdata \Roaming\Docker)

如果您已经在启用Hyper-V的Windows 10 Pro上安装了docker，并且仍然不能在Windows 10上运行docker，那么，正如错误提示的那样，您的docker守护进程没有启动。

下面的步骤帮助我成功启动docker:

在cmd上使用命令(管理模式) docker-机器重启默认 然后你会收到这样一条消息: 用户打开C: \ \ \ {User_name} \ \ .docker \机\ \机器默认\ json: 系统无法找到指定的文件。 转到窗口托盘上的docker图标(桌面的右下角) 右键单击docker图标>设置>复位>重启docker 这要花点时间 然后你会看到下面的消息: Docker正在运行，指示灯为绿色

注意:如果您的系统上已经运行了Docker容器，那么请不要执行这些步骤。您可能会丢失现有的容器。

我的情况是，我在WSL shell中运行docker命令，仍然能够做到这一点，而在git-bash(或另一个基于windows的shell)我面临这个错误。

对我来说，解决方案是这个答案，但重新启动窗口

我在Docker 19.03.12版和Windows 10版上得到了同样的错误。通过以下步骤解决这个问题。希望它能帮助别人。

Go to Windows Start -> Search Box (Type here to search). There enter 'Services'. Among the listed items, click Services app. Now search 'Docker Desktop Service' in the Services window opened. Right click on it and Start the service. Its status should be changed to 'Running'. If step 2 gives error like 'the dependency service failed to start', then start all dependency services. For me, I had to start a service called 'Server'. Double click 'Docker Desktop' icon in desktop. Now you will see 'Docker Desktop is running' in system tray. Now run the command 'docker version' from Command Prompt or PowerShell. It should give clean output. If any issue in step 5, run Command Prompt or PowerShell as administrator.

上述解决方案假设Docker已经安装，并且在您的系统中启用了Hyper-V / Virtualization。

The same issue arrived when I started with the docker in windows 10. I was able to run docker --version successfully but failed when I tried to run docker pull docker/whalesay. I tried many things suggested in the answers over here but my issue was resolved when I followed the below steps: 1 . Search for docker in windows and run docker desktop as administrator. 2 . Check the bottom-left docker symbol it should be green if the docker is running. 3 . If it's not running first install "wsl_update". 4 . Open the docker desktop and sign in with your docker credentials, when you are logged in you can see the server restarting and the bottom left logo turns green. 5. To check whether docker is running or not open PowerShell as administrator and run docker run hello-world.

错误代码:

连接过程中出现错误:Get http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.29/version:开放 / /。/pipe/docker_engine:系统找不到指定的文件。在 Windows上的默认守护进程配置，必须运行docker客户端 抬高连接。此错误也可能表明docker Daemon未运行。

解决方案:

1)对于Windows 7命令窗口(cmd.exe)，以管理员身份打开cmd.exe，执行如下命令:

docker-machine env --shell cmd default

您将收到以下输出:

SET DOCKER_TLS_VERIFY=1
SET DOCKER_HOST=tcp://192.168.99.100:2376
SET DOCKER_CERT_PATH=C:\Users\USER_NAME\.docker\machine\machines\default
SET DOCKER_MACHINE_NAME=default
SET COMPOSE_CONVERT_WINDOWS_PATHS=true
REM Run this command to configure your shell:
REM @FOR /f "tokens=*" %i IN ('docker-machine env --shell cmd default') DO @%i

复制下面的命令并在cmd上执行:

@FOR /f "tokens=*" %i IN ('docker-machine env --shell cmd default') DO @%i

然后执行以下命令进行控制:

docker version

2)对于Windows 7 Powershell，以管理员身份运行Powershell .exe，执行以下命令:

docker-machine env --shell=powershell | Invoke-Expression

然后执行以下命令进行控制:

docker version

3)如果重新打开cmd或powershell，应再次重复相关步骤。