title: Sonar-runner fails due to missing cxx-language plugin, although installed
body: <p>I am very new to Sonar and in the process of setting up my first server/project. </p>
  
  <p>Environment:</p>
  
  <ul>
  <li>OS: Windows Server 2008 R2 / amd64 / 6.1</li>
  <li>App Server: Tomcat/7.0.40I, deployed the Sonar WAR file (3.5.1).</li>
  <li>DB: MySQL 5.6.11</li>
  </ul>
  
  <p>(relevant) Plugins:</p>
  
  <ul>
  <li>Sonar C++ Community Plugin (0.2)</li>
  </ul>
  
  <p>The plugin is visible under General Settings --> Sonar C++ Community Plugin</p>
  
  <p>sonar-project.properties</p>
  
  <pre><code># Required metadata
  sonar.projectKey=test:pmc
  sonar.projectName=PMC
  sonar.projectVersion=1.0
  sonar.language=c++
  
  # Comma-separated paths to directories with sources (required)
  sonar.sources=c:/SVN/Development/test/PMC/trunk/AppServer,c:/SVN/Development/test/PMC/trunk/PmcShared,c:/SVN/Development/test/PMC/trunk/WebServer,c:/SVN/Development/test/PMC/trunk/Tools
  
  # Optional path to the CppCheck program required to activate some CppCheck rules
  sonar.cpp.cppcheck.path=C:/Program Files (x86)/Cppcheck/cppcheck.exe
  
  # Encoding of the source files
  sonar.sourceEncoding=UTF-8
  </code></pre>
  
  <p>The thing I do not understand is that it cannot find a plugin that supports the 'cxx' language:</p>
  
  <pre><code>C:\Users\Administrator\Documents\sonar-projects\PMC&gt;sonar-runner
  C:\Users\Administrator\Documents\sonar-runner-2.2.1
  Sonar Runner 2.2.1
  Java 1.7.0_21 Oracle Corporation (64-bit)
  Windows Server 2008 R2 6.1 amd64
  INFO: Runner configuration file: C:\Users\Administrator\Documents\sonar-runner-2.2.1\conf\sonar-runner.properties
  INFO: Project configuration file: C:\Users\Administrator\Documents\sonar-projects\PMC\sonar-project.properties
  INFO: Default locale: "en_US", source code encoding: "UTF-8"
  INFO: Work directory: C:\Users\Administrator\Documents\sonar-projects\PMC\.sonar
  INFO: Sonar Server 3.5.1
  15:20:54.231 INFO  - Load batch settings
  15:20:54.794 INFO  - User cache: C:\Users\Administrator\.sonar\cache
  15:20:54.797 INFO  - Install plugins
  15:20:55.742 INFO  - -------------  Executing Project Scan
  15:20:56.482 INFO  - Install JDBC driver
  15:20:56.487 INFO  - Apply project exclusions
  15:20:56.493 INFO  - Create JDBC datasource for jdbc:mysql://localhost:3306/sonar?useUnicode=true&amp;amp;characterEncoding=utf8
  15:20:56.771 INFO  - Initializing Hibernate
  15:20:59.229 INFO  - -------------  Inspecting PMC
  15:20:59.229 INFO  - Load module settings
  INFO: ------------------------------------------------------------------------
  INFO: EXECUTION FAILURE
  INFO: ------------------------------------------------------------------------
  Total time: 6.162s
  Final Memory: 13M/221M
  INFO: ------------------------------------------------------------------------
  ERROR: Error during Sonar runner execution
  ERROR: Unable to execute Sonar
  ERROR: Caused by: You must install a plugin that supports the language 'cxx'
  ERROR:
  ERROR: To see the full stack trace of the errors, re-run Sonar Runner with the -e switch.
  ERROR: Re-run Sonar Runner using the -X switch to enable full debug logging.
  </code></pre>
  
  <p>I do have the Sonar C++ Community Plugin installed so I guess I am missing the obvious...could someone please help me getting started?</p>