title: Docker Compose : yaml: line 9: did not find expected tag URI
body: <p>I have a problem that I don't understand at all. Somebody knows how to solve this problem and why it happens?</p>
  <blockquote>
  <p>yaml: line 9: did not find expected tag URI</p>
  </blockquote>
  <pre class="lang-yaml prettyprint-override"><code>version: &quot;3.9&quot;
  
  services:
    php:
      build:
        context: ./
        target: ripoty_php
        args:
          SYMFONY_VERSION: ${SYMFONY_VERSION:-}
          SKELETON: ${SKELETON:-symfony/website-skeleton}
          STABILITY: ${STABILITY:-stable}
      restart: unless-stopped
      volumes:
        - php_socket:/var/run/php
      healthcheck:
        interval: 10s
        timeout: 3s
        retries: 3
        start_period: 30s
      environment:
        MERCURE_URL: ${CADDY_MERCURE_URL:-http://caddy/.well-known/mercure}
        MERCURE_PUBLIC_URL: https://${SERVER_NAME:-localhost}/.well-known/mercure
        MERCURE_JWT_SECRET: ${CADDY_MERCURE_JWT_SECRET:-!ChangeMe!}
  
   ...
  
  volumes:
    php_socket:
    caddy_data:
    caddy_config:
  
  </code></pre>
  <p>I use Kevin Dunglas' repo: <a href="https://github.com/dunglas/symfony-docker" rel="nofollow noreferrer">Repository</a></p>