How to resolve the version ... is unsupported error when running docker-compose.
[01] Situation
- Running
docker-compose up -d
- Error:
Version in "./docker-compose.yml" is unsupported
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$ sudo 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/
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[02] Root Cause
- The installed docker-compose version doesn’t support the current OS (Ubuntu 24.04)
- Current system’s docker-compose version:
1.25.0
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$ docker-compose version
docker-compose version 1.25.0, build unknown
docker-py version: 4.1.0
CPython version: 3.8.10
OpenSSL version: OpenSSL 1.1.1f 31 Mar 2020
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[03] Fix
- Reinstall
docker-compose
- As of 2023-01-06, version
2.14.2 installs on Ubuntu 24.04
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# Install jq to fetch the latest version metadata
sudo apt-get install jq
# Store the latest version and install destination
VERSION=$(curl --silent https://api.github.com/repos/docker/compose/releases/latest | jq .name -r)
DESTINATION=/usr/bin/docker-compose
# Download the docker-compose binary to the destination
sudo curl -L https://github.com/docker/compose/releases/download/${VERSION}/docker-compose-$(uname -s)-$(uname -m) -o $DESTINATION
# Grant execute permission (so non-root users can run it)
sudo chmod 755 $DESTINATION
# Verify the install path
which docker-compose
# Check the installed version
docker-compose version
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