title: The WiX Toolset v3.11 (or newer) build tools must be installed to build this project
body: <p>Just installed Visual Studio 2017 and wix extension and when trying to build a solution which uses Wix I get the following error: </p>
  
  <pre><code>Error       The WiX Toolset v3.11 (or newer) build tools must be installed to build this project. Could not find wix.targets at 'C:\Program Files (x86)\MSBuild\Microsoft\WiX\v3.x\'. To download WiX Toolset v3.11 (or newer), see http://wixtoolset.org/releases/ Installer   C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Microsoft\WiX\v3.x\Wix.targets 10  
  </code></pre>
  
  <p>In folder "C:\Program Files (x86)\MSBuild\Microsoft\WiX\v3.x\" I have the following files</p>
  
  <pre><code>2017-11-29  15:12    &lt;DIR&gt;          .
  2017-11-29  15:12    &lt;DIR&gt;          ..
  2017-05-01  07:34           293 705 difxapp_x64.wixlib
  2017-05-01  07:34           203 950 difxapp_x86.wixlib
  2017-02-27  23:52             3 369 LICENSE.TXT
  2017-02-27  23:52             4 233 lux.targets
  2017-03-28  02:20             9 067 wix.ca.targets
  2017-05-01  07:32             1 731 wix.nativeca.targets
  2017-03-28  02:20             1 097 wix.targets
  2017-02-27  23:52           145 601 wix200x.targets
  2017-02-27  23:52           146 067 wix2010.targets
  </code></pre>
  
  <p>Which includes the file "wix.targets" which Visual Studio reports as missing. What am I doing wrong? </p>