docker-compose version ERROR

[esmaeelE]

On Debian 11 here is the message after run docker-compose -d

$ docker-compose up -d
ERROR: Version in "./docker-compose.yml" is unsupported. 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/

But as it said changing
version: '3.8' -> '3.3'
will solve it.

[MaxianEdison]

Hi @esmaeelE
You must use latest version of docker and docker compoes to run this compose file.
please update your docker version and use docker compose up -d instead of docker-compose up -d
for more information see this

[esmaeelE]

Thanks in advance @MaxianEdison, I know it can be done but as updating a single package in stable Debian especially from non-official repository not recommend and not a choice for me.

One option is to check distribution release and then change $ version variable but it can be complicated for other type of OSes.

Maybe adding a comment to README.md file expressing something like this is better.

If you are running Debian stable please set version number to '3.3' in docker-compose.yml file.

version: '3.3'

[esmaeelE]

As version top-level property is obsolete in docker compose 25.05 so this issue neither relevant.