Answers for "Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?"

In the default daemon configuration on Windows , the docker client must be run elevated to connect.

docker-machine env --shell cmd default

WSL connect docker daemon to docker for windows

echo "export DOCKER_HOST=tcp://localhost:2375" >> ~/.bashrc && source ~/.bashrc

Cannot connect to the Docker daemon at tcp://localhost:2375. Is the docker daemon running?

Add this to the bitbucket-pipeline.yaml file, on the right step:
services:
  - docker

Cannot connect to the Docker daemon at tcp://0.0.0.0:2375. Is the docker daemon running?

Nothing works!!! Just install Linux directly on your system