Check Plugins: Ensure Jenkins has the SonarQube Scanner plugin installed.

Configure SonarQube: Add SonarQube server details in Jenkins (Manage Jenkins > Configure System).

Scanner Setup: Install the SonarQube Scanner in Jenkins (Global Tool Configuration).

Add Step: In your Jenkins job, add a "Execute SonarQube Scanner" build step.

Check Logs: If it fails, check Jenkins logs for errors.