--- title: Docker Compose Error description: docker-compose version discrepancies date: '2019-12-13' draft: false slug: '/pensieve/docker-error' tags: - WordPress - Docker --- ## Problem Recently while updating with [Skela](https://github.com/Upstatement/skela-wp-theme) with webpack, I encountered a weird error where I wasn't able to run a simple script: ```shell:title=bin/composer #!/bin/bash docker-compose exec -w /var/www/html/wp-content/themes/skela wordpress composer "$@" ``` When trying to run this script via `./bin/composer install`, I got this error in my terminal: ```shell ERROR: Setting workdir for exec is not supported in API < 1.35 (1.30) ``` The error was coming from the `-w` flag in the `docker-compose exec` command in the `composer` script. ## Solution Turns The fix was to update the version in my `docker-compose.yml` file to from version `3.5` to `3.6`. It's strange because 3.5 isn't anywhere close to the API version `1.35` from the error message 🤷‍♀️ ```yaml:title=docker-compose.yml version: '3.6' # highlight-line services: wordpress: build: ```