In order to analyze CSS code, you need to have Node.js >= 6 installed on the machine running the scan. Set property
sonar.nodejs.executable to an absolute path to Node.js executable, if standard
node is not available.
If you have a community plugin that handles CSS installed on your SonarQube instance it will conflict with SonarCSS, so it should be removed.
Discover and update the CSS-specific Administration > General Settings > CSS
- Importing External Issues (StyleLint.io)