Docker compose invalid top-level property "name"

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I'm trying to set up my docker project name, and according to documentation there should be the docker compose file top-level property 'name' to do so, but I can't figure out how to use it.

I found references at the end of The Compose application model section and in the specific Name top-level element section, but none of the two have an example and I still get an error when trying to run docker-compose up -d

docker-compose.yml file

version: "3.3"

name: "project-name"

services:
    # ...

The error

ERROR: The Compose file './docker-compose.yml' is invalid because:
Invalid top-level property "name". Valid top-level sections for this Compose file are: version, services, networks, volumes, secrets, configs, and extensions starting with "x-".

You might be seeing this error because you're using the wrong Compose file version. Either specify a supported version (e.g "2.2" or "3.3") and place your service definitions under the `services` key, or omit the `version` key and place your service definitions at the root of the file to use version 1.
For more on the Compose file format versions, see https://docs.docker.com/compose/compose-file/
docker-compose docker
1 Answers

To use the compose-spec, you need a tool that parses that spec (like docker compose with a space) and you shouldn't be specifying a version. If you are parsing the file with an older version of docker-compose or a tool that doesn't use the spec, these newer fields won't work and you'll likely see it fall back to version 1 without a version field.

With version: "3.3", that expects the format defined in the version 3 documentation.

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