docker - Host does not exist: "default"

docker-machine.exe를 실행할 때 다음과 같은 오류가 발생할 수 있습니다.

C:\Windows\System32>docker-machine start default
Host does not exist: "default"

C:\Windows\System32>docker-machine ls
NAME   ACTIVE   DRIVER   STATE   URL   SWARM   DOCKER   ERRORS

C:\Windows\System32>docker-machine create default
Creating CA: C:\Users\TestUser\.docker\machine\certs\ca.pem
Creating client certificate: C:\Users\TestUser\.docker\machine\certs\cert.pem
Running pre-create checks...
Error with pre-create check: "VBoxManage not found. Make sure VirtualBox is installed and VBoxManage is in the path"

C:\Windows\System32>docker-machine create -d hyperv default
Running pre-create checks...
(default) Image cache directory does not exist, creating it at C:\Users\TestUser\.docker\machine\cache...
(default) No default Boot2Docker ISO found locally, downloading the latest release...
(default) Latest release for github.com/boot2docker/boot2docker is v17.05.0-ce
(default) Downloading C:\Users\TestUser\.docker\machine\cache\boot2docker.iso from https://github.com/boot2docker/boot2docker/releases/download/v17.05.0-ce/boot2docker.iso...
(default) 0%....10%....20%....30%....40%....50%....60%....70%....80%....90%....100%
Creating machine...
(default) Copying C:\Users\TestUser\.docker\machine\cache\boot2docker.iso to C:\Users\TestUser\.docker\machine\machines\default\boot2docker.iso...
(default) Creating SSH key...
(default) Creating VM...
(default) Using switch "vpc-switch"
(default) Creating VHD
(default) Starting VM...
(default) Waiting for host to start...
Waiting for machine to be running, this may take a few minutes...
Detecting operating system of created instance...
Waiting for SSH to be available...
Detecting the provisioner...
Provisioning with boot2docker...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
Checking connection to Docker...
Docker is up and running!
To see how to connect your Docker Client to the Docker Engine running on this virtual machine, run: docker-machine env default