title: Bundles can't contain multiple app packages for the same processor architecture Windows 10
body: <p>I am upgrading (porting) an existing app from 8.1 to Windows 10. When I try to build a package I get this error:</p>
  
  <p>The package with file name "MyWindows10App_1.1.0.0_x64.appx" and package full name "26637BetsySoft.Myversion81App_1.1.0.0_x86__grkkn6rpr1pew" 
   is not valid in the bundle because the bundle also contains 
   the package with file name "MyWindows10App_1.1.0.0_x86.appx" and package full name "26637BetsySoft.Myversion81App_1.1.0.0_x86__grkkn6rpr1pew" 
   which applies to the same processor architecture.<br>
   Bundles can't contain multiple app packages for the same processor architecture, or an architecture-neutral app package with any architecture-specific app package.</p>
  
  <p>My Windows 8.1 app was uploaded as an appxBundle and for that reason VS says it will create a bundle by default. Does anybody have any suggestions? I have tried changing the 'platform target' and configuration for the build (several different configurations). I can't get past the error. </p>
  
  <p>additional messages:</p>
  
  <ul>
  <li>Bundle creation failed. C:\WS_VS2015\WalkScore_W10\WalkScore_W10\MakeAppx</li>
  <li>Error 0x80080204 - The specified package format is not valid: The package manifest is not valid. </li>
  </ul>