title: Wix Heat Error on Jenkins CI
body: <p>I am building a wix bundle that depends on a wix setup project and the wix setup depends on a C# project.  When I build locally, everything works great but when I build the bundle on Jenkins, I get an error when I try to harvest some files.  The heat operation is a pre-build event.</p>
  
  <p><code>heat.exe : error HEAT5053: The directory 'c:\.Hudson\jobs\Project-Branch\workspace\MyProject\bin\x86\Release\Help' did not contain any files or sub-directories and since empty directories are not being kept, there was nothing to harvest</code></p>
  
  <p>I checked <code>MyProject</code> workspace in `bin\x86\Release' and the files are not there so it makes sense that I'd get this error.  But if I don't build my installer project and my bundle (bootstrap) project, my files are there.  Somehow they are getting removed with my wix projects building.  Any ideas?</p>