title: could not find assembly 'platform.winmd' when building Boost 1_60 using VS 2015
body: <p>I'm trying to build the Boost libraries with windows-api=store for Visual Studio 2015 but I'm getting the following error: <code>could not find assembly 'platform.winmd'</code>.</p>
  
  <p>Here's my build statement:</p>
  
  <pre><code>.\b2 --build-dir=bld  link=shared runtime-link=shared threading=multi address-model=64 --toolset=msvc-14.0 windows-api=store
  </code></pre>
  
  <p><a href="https://stackoverflow.com/questions/32945500/compiling-c-cx-on-the-command-line">This question</a> mentions that Update 1 for Visual Studio 2015 might fix it but I'm still seeing these errors.</p>
  
  <p>I've tried calling vcvarsall.bat with amd64 store but no luck.</p>
  
  <p>Has anyone been able to build Boost v1_60 with VS 2015 Update 1 with windows-api=store?</p>