title: VSIX project not loading zip template during build
body: <p>I am trying to create a VSIX which will have a multi-project template.</p>
  
  <p>I've followed the instructions in <a href="https://msdn.microsoft.com/en-us/library/dd885241.aspx" rel="nofollow noreferrer">this</a> msdn link and also included IWizard implementation for some manipulations.</p>
  
  <p>I'm getting the below error while trying to build the solution:</p>
  
  <blockquote>
    <p>Could not determine the FullName of the Assembly at "C:\Users\username\Documents\Visual Studio 2015\Projects\MyTemplateSolution\MyProjectWizard1\ProjectTemplates\CSharp\Cloud\TestTemplate.zip". Could not load file or assembly 'TestTemplate.zip' or one of its dependencies. An attempt was made to load a program with an incorrect format.  MyProjectWizard1    </p>
  </blockquote>
  
  <p>The project structure looks like this : <a href="https://i.stack.imgur.com/ZGhBy.png" rel="nofollow noreferrer">project structure</a></p>
  
  <p>The vsixmanifest assets look like this :</p>
  
  <p><code>&lt;Assets&gt;
      &lt;Asset Type="Microsoft.VisualStudio.Assembly" d:Source="Project" d:ProjectName="%CurrentProject%" Path="|%CurrentProject%|" AssemblyName="|%CurrentProject%;AssemblyName|" /&gt;
      &lt;Asset Type="Microsoft.VisualStudio.ProjectTemplate" d:Source="File" Path="ProjectTemplates" d:TargetPath="ProjectTemplates\CSharp\Cloud\TestTemplate.zip" /&gt;
  &lt;/Assets&gt;</code></p>
  
  <p>template zip properties are below:<br>
  Build Action : Content<br>
  Copy To Output Directory : Copy Always<br>
  Include in VSIX : True</p>