title: UpgradeWizard.aspx error when upgrading from DNN 9.0.1 to DNN 9.0.2
body: <p>I am currently trying to upgrade my DNN application from version 9.0.1 to version 9.0.2. I have downloaded the upgrade.zip for version 9.0.2 from <a href="https://github.com/dnnsoftware/Dnn.Platform" rel="nofollow noreferrer">https://github.com/dnnsoftware/Dnn.Platform</a> I then exported the content and copied it to my website folder. When I then go to my website (which only runs locally) I get a DNN error without any text or information. It says <code>DNN Error</code> only on a grey background in the browser. Using the developer tools I could see that the following error is displayed in the console: </p>
  
  <pre><code>GET http://local.sylaender.me/Portals/_default/default.css net::ERR_ABORTED 404 (Not Found) - UpgradeWizard.aspx:8 
  </code></pre>
  
  <p>I have looked at the <code>UpgradeWizard.aspx</code> file. It refers to a <code>default.css</code> which is located in the folder <code>/Resources/Shared/stylesheets/dnndefault/7.0.0/</code>. I copied it and pasted it into the directory <code>/Portals/_default/</code>. The error in the console of the developer tools did not come with it any more, but with the call of the page <code>DNN Error</code> still shows without any information. In the console of the developer tools there are no more errors to see.</p>