Hello everyone I am trying to install prefect according to t

Question

Hello everyone I am trying to install prefect according to the tutorial I run the following commands ```python3 m venv prefect venv source prefect venv bin activate pip install wheel pip install prefect prefect backend server prefect server start``` And then I get the error subprocess CalledProcessError Command docker compose down returned non zero exit status 255 When I run `prefect diagnostics` everything seems to be fine ``` config overrides env vars system information platform Linux 4 15 0 142 generic x86 64 with Ubuntu 18 04 bionic prefect backend server prefect version 0 14 16 python version 3 6 9 ``` Has anyone faced this problem

Chris White · Answer

Hi Vladislav if you search GitHub you can usually find discussions around errors like this <https github com PrefectHQ prefect issues 3886> In this case it s most likely because you don t have either Docker or docker compose running on your machine

Vladislav Bogucharov · Answer

Thanks but I have a slightly different problem I suspect there is an access issue Because I see the following messages in error docker errors DockerException Error while fetching server API version Connection aborted PermissionError 13 Permission denied

Vladislav Bogucharov · Answer

Ok it seems that everything works as it should under root