title: Technical Debt showing Zero in Sonar
body: <p>I am using Jenkins for CI and added the sonar plugins for Jenkins. After sonar scan Technical Debt shown Zero.</p>
  
  <p>But actually its is not zero previously was using latest version of sonar there it was showing Technical Debt but after downgrading it is not shown .(Duplicate code ,Lines of code ,complexity are shown)</p>
  
  <p>Below are the version of sonar used </p>
  
  <p>Before Downgrading following version are used  (Working fine)</p>
  
  <pre><code>sonar scanner 2.5.1 , Sonar Plugin 2.3 , SonarQube 5.4 , Jenkins version. 1.651
  </code></pre>
  
  <p>After Downgrading (Technical Debt not shown)</p>
  
  <pre><code>Sonar scanner 2.5, sonar plugin 2.1 , SonarQube 4.5 , Jenkins version 1.651
  </code></pre>
  
  <p>How this problem can be solved ?</p>
  
  <p>Thanks</p>
  
  <p>Ganesh</p>