title: Custom Action, Unable to build custom action because the project output group does not have a key file
body: <p>When I am trying to create an installation project, I get this error message when I try to build the installation class. </p>
  
  <p><strong>Unable to build custom action  because the project output group does not have a key file.</strong> </p>
  
  <p>What is wrong my custom action</p>
  
  <p>I have a custom action that does some manipulation after the 
   I have a custom action as follows. </p>
  
  <pre><code>  public class InstallerHelper:Installer
    {
      public override void Install(System.Collections.IDictionary stateSaver)
      {
        base.Install(stateSaver);
        Console.WriteLine("Hello World");
        Console.ReadLine();
      }
    }
  </code></pre>