title: TransformXml task fails via msbuild on linux using mono
body: <p>After following the steps in <a href="https://stackoverflow.com/a/5109530/4875631">this answer</a>, when attempting to build a project through mono (Using msbuild), I get the following error:</p>
  
  <blockquote>
    <p>(AfterCompile target) ->
      project.csproj(469,5): error MSB4062: The "TransformXml" task could not be loaded from the assembly /usr/lib/mono/xbuild/Microsoft/VisualStudio/v15.0/Web/Microsoft.Web.Publishing.Tasks.dll.  Confirm that the  declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask.</p>
  </blockquote>
  
  <p>It appears as if <code>Microsoft.Web.Publishing.Tasks.dll</code> is unavailable.</p>