title: Error MSB3147: Could not find required file 'setup.bin' while building Wix Installer
body: <p>I am trying to build a Wix installer for my project in Visual Studio 2015. </p>
  
  <p>I have Wix Toolset 3.10.3.3007 installed.</p>
  
  <p>Got this error, Looks like I need some kind of bootstrapper for Windows 8.1A.</p>
  
  <p><strong>1. What is "A" in 8.1 and Where do I find 8.1A SDK so that I get Bootstrapper Engine.</strong></p>
  
  <pre><code>   1&gt;------ Build started: Project: Y, Configuration: Debug x86 ------
      1&gt;C:\X\Y.wixproj(56,5): error MSB3147: Could not find required file 'setup.bin' in 'C:\Program Files (x86)\Microsoft SDKs\Windows\v8.1A\Bootstrapper\Engine'.
      1&gt;Done building project "Y.wixproj" -- FAILED.
      1&gt;
      ========== Build: 0 succeeded, 1 failed, 2 up-to-date, 0 skipped ==========
  </code></pre>
  
  <p>I am not sure why wix project is pointing to Windows 8.1 SDK. I am running Windows 10.</p>
  
  <p>I already have Windows 8.1 &amp; 10 SDKs installed here - </p>
  
  <pre><code>C:\Program Files (x86)\Microsoft SDKs\Windows\v8.1A\bin\NETFX 4.5.1 Tools
  C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6 Tools
  C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6.1 Tools
  C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.6.2 Tools
  </code></pre>