Cannot connect to the Docker daemon on macOS

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On a supported Mac, run:

brew install --cask docker

Then launch the Docker app. Click next. It will ask for privileged access. Confirm. A whale icon should appear in the top bar. Click it and wait for “Docker is running” to appear.

You should be able to run docker commands now:

docker ps

Because docker is a system-level package, you cannot install it using brew install, and must use --cask instead.

Note: This solution only works for Macs whose CPUs support virtualization, which may not include old Macs.

Edit 2022 – It was brought up in the comments section that there has been a licensing change for Docker Desktop. Please consider alternatives below, and check the comments for details.

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