Docker client API version issue

Question

I run 'docker version', which gives:

> docker version
Client: Docker Engine - Community
 Version:           19.03.8
 API version:       1.40

As it tells, client API version is 1.40.

But when I am trying to run a docker-compose command, I get error as:

> docker-compose up
ERROR: client version 1.22 is too old. Minimum supported API version is 1.24, please upgrade your client to a newer version

Why this message, when client API version is 1.40?

Edit: I updated docker-compose.

>docker-compose version
docker-compose version 1.25.5, build unknown
docker-py version: 4.2.0
CPython version: 3.7.4
OpenSSL version: OpenSSL 1.1.1c  28 May 2019

But I still see same issue:

>docker-compose up
ERROR: client version 1.22 is too old. Minimum supported API version is 1.24, please upgrade your client to a newer version

Answer 1

As it turns out, "version" in docker-copose.yml is the reason for error. It was 2 for me, and I changed it to 2.1. Now it works.