Compose: Setting environment for exec is not supported in API.

[NicklasWallgren]

I'm a bit confused, I'm running docker client API 1.37 but the error message states 1.24.

docker-compose -f docker-compose.yml exec --env COLUMNS=`tput cols` --env LINES=`tput lines`<container> bash
Setting environment for exec is not supported in API < 1.25 (1.24)

docker version
Client:
 Version:      18.03.1-ce
 API version:  1.37
 Go version:   go1.9.5
 Git commit:   9ee9f40
 Built:        Thu Apr 26 07:13:02 2018
 OS/Arch:      darwin/amd64
 Experimental: false
 Orchestrator: swarm

Server:
 Engine:
  Version:      18.03.1-ce
  API version:  1.37 (minimum version 1.12)
  Go version:   go1.9.5
  Git commit:   9ee9f40
  Built:        Thu Apr 26 07:22:38 2018
  OS/Arch:      linux/amd64
  Experimental: true

[shin-]

Most likely, your Compose file declares version 2.1 that is pinned to the 1.24 API. You can either upgrade to 2.2 or above, or override the setting using COMPOSE_API_VERSION

[NicklasWallgren]

Right, that solved it. Thanks for the clarification.