title: WiX: "PushButton: 'Next' of Dialog: 'InstallDirDlg' does not have an event defined in the ControlEvent table. It is a 'Do Nothing' button."
body: <p>I have a WiX 3.8 installer <code>Product.wxs</code> that builds correctly in Visual Studio 2010 Professional.<br>
  I just wanted to modify the steps workflow of the installer, so I added this just after the Wix/Product/Package XML element:</p>
  
  <pre><code>&lt;UI&gt;
    &lt;Publish Dialog="WelcomeDlg"
             Control="Next"
             Event="NewDialog"
             Value="InstallDirDlg"
             Order="2"&gt;1&lt;/Publish&gt;
    &lt;Publish Dialog="InstallDirDlg"
             Control="Back"
             Event="NewDialog"
             Value="WelcomeDlg"
             Order="2"&gt;1&lt;/Publish&gt;
  &lt;/UI&gt;
  </code></pre>
  
  <p>Problem: WiX now fails with this message:</p>
  
  <blockquote>
    <p>Error 13  ICE17: PushButton: 'Next' of Dialog: 'InstallDirDlg' does not have an event defined in the ControlEvent table. It is a 'Do Nothing' button. C:\src\wix38\src\ext\UIExtension\wixlib\InstallDirDlg.wxs   14  1   Installer</p>
  </blockquote>
  
  <p>What am I doing wrong?</p>