# E001 — Docker daemon not reachable (https://jackin.tailrocks.com/reference/errors/E001/)



**E001**: Docker daemon not reachable

## What to try [#what-to-try]

Start Docker Desktop, OrbStack, or run `colima start`. Check `DOCKER_HOST` if using a remote daemon. Then run `jackin doctor` to verify the fix.

## See also [#see-also]

* Run `jackin doctor` for a full pre-flight health check.
* Pass `--debug` to any `jackin` command to enable diagnostic tracing.