title: No tool named SonarQube Scanner 2.8 found error
body: <p>I followed these instructions to download the SonarQube Scanner plugin for Jenkins. I've configured these jenkins global settings for the SonarQube scanner correctly. The SonarQube server is setup and functioning properly.</p>
  
  <p><a href="https://docs.sonarqube.org/display/SCAN/Analyzing+with+SonarQube+Scanner+for+Jenkins#AnalyzingwithSonarQubeScannerforJenkins-AnalyzinginaJenkinspipeline" rel="nofollow noreferrer">https://docs.sonarqube.org/display/SCAN/Analyzing+with+SonarQube+Scanner+for+Jenkins#AnalyzingwithSonarQubeScannerforJenkins-AnalyzinginaJenkinspipeline</a></p>
  
  <p>But when the build runs, it produces this error: <strong>No tool named SonarQube Scanner 2.8 found.</strong></p>
  
  <p><a href="https://i.stack.imgur.com/zt1tq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zt1tq.png" alt="enter image description here"></a></p>
  
  <p>I am using a Jenkins declarative pipeline script for pipeline build.</p>
  
  <p>I am using Jenkins ver. 2.131. I am using "SonarQube Scanner for Jenkins" Plugin version 2.8.1. I believe the Jenkins server is a common linux flavor. I am NOT using any version of Maven, and don't require it to build my projects.</p>
  
  <p>I figured the plugin installed the actual scanner files for me on Jenkins.  Do I need to have some version of the scanner command files installed, beyond whatever the plugin provided me? Meaning, is there something other than the plugin that I need to install on by Jenkins server? I would hope the SonarQube plugin would give me everything I would need to run on Jenkins build.</p>
  
  <p>Here's the relavent part of my script:</p>
  
  <pre><code> stages {
     stage("SonarQube Analysis") {
        agent any
        steps {
          script {
              def scannerHome = tool 'SonarQube Scanner 2.8';
              withSonarQubeEnv("foo") {
                sh "${scannerHome}/bin/sonar-scanner"
              }
          }
        }
      }
  </code></pre>
  
  <p>Here is a screenshot of the global configuration:</p>
  
  <p><a href="https://i.stack.imgur.com/8wUul.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8wUul.png" alt="enter image description here"></a></p>