Docker not found

I prepared the rebuild app after installing the plugin, but strangely, it failed. Here is the code: (Sorry, this issue may be foolish, I am a complete beginner)

ubuntu@VM-4-2-ubuntu:/var/discourse$ ./launcher rebuild app
Cannot connect to the docker daemon - verify it is running and you have access
ubuntu@VM-4-2-ubuntu:/var/discourse$ docker-machine start default
Command 'docker-machine' not found, but can be installed with:
sudo snap install docker

I have tried and searched for some methods before, but none of them were effective.

It looks like docker is not installed. You could usual it the way suggested or use the way suggested in the standard install instructions.

1 Like

thank you so much,I will try again. :smiley: