title: Can't migrate caliburn Bootstrapper<T> class to version 2.0+
body: <p>I have the following problem: In one project I use, caliburn is used, but the code is not up to date.</p>
  
  <p>I found this line in the changelog of caliburn, which should solve the problem:</p>
  
  <p><strong>Bootstrapper&lt;T></strong> has been removed. Use <strong>BootstrapperBase</strong> and override <strong>OnStartup</strong> with a call to <strong>DisplayRootViewFor&lt;T>()</strong> instead.</p>
  
  <p>In the project the code is still like this:</p>
  
  <pre><code>public class Bootstrapper : Caliburn.Micro.Bootstrapper&lt;MvvmCameraDemo.ViewModels.ShellViewModel&gt;
      {
      }
  </code></pre>
  
  <p>This of course does not work anymore because BootstrapperBase has no argument <code>&lt;T&gt;</code> in the new version of caliburn.</p>
  
  <p>I am not so familiar with coding, so maybe one of you guys can help me, how to replace the old Class with the new one.</p>
  
  <p>Thanks</p>