title: http error 500.19 - internal error The requested page cannot be accessed because the related configuration data for the page is invalid
body: <p>I created and deployed classic ASP site, when I test in IE, I get this:</p>
  
  <blockquote>
    <p>HTTP Error 500.19 - Internal Server Error<br>
    Description: The requested page cannot be accessed because the related configuration<br>
    data for the page is invalid. </p>
    
    <p>Error Code: 0x8007000b7 </p>
    
    <p>Notification: ExecuteRequestHandler</p>
    
    <p>Module: DefaultDocumentModule</p>
    
    <p>Requested URL: localhost:80/bikes/</p>
    
    <p>Physical Path: D:\BIKES\<br>
    Logon User: Anonymous</p>
    
    <p>Logon Method: Anonymous</p>
    
    <p>Handler: StaticFile</p>
    
    <p>Config Error: Cannot add duplicate collection entry of type 'add' with unique key attribute 'value' set to 'index.asp'</p>
    
    <p>Config File: \?\D:\BIKES\web.config</p>
    
    <p>Config Source:<br>
       6: <code>&lt;files&gt;</code><br>
         7:   <code>&lt;add value="index.asp" /&gt;</code><br>
         8:<code>&lt;/files&gt;</code></p>
  </blockquote>
  
  <p>and this is my web.config:</p>
  
  <pre class="lang-xml prettyprint-override"><code>    &lt;?xml version="1.0" encoding="UTF-8"?&gt;
      &lt;configuration&gt;
      &lt;system.webServer&gt;
          &lt;directoryBrowse enabled="false" /&gt;
          &lt;defaultDocument&gt;
            &lt;files&gt;
              &lt;add value="index.asp" /&gt;
            &lt;/files&gt;
          &lt;/defaultDocument&gt;
          &lt;security&gt;
              &lt;authorization&gt;
                  &lt;remove users="*" roles="" verbs="" /&gt;
                  &lt;add accessType="Allow" users="*" roles="" /&gt;
              &lt;/authorization&gt;
          &lt;/security&gt;
      &lt;/system.webServer&gt;
      &lt;connectionStrings&gt;
          &lt;remove name="LocalSqlServer" /&gt;
      &lt;/connectionStrings&gt;
    &lt;/configuration&gt;
  </code></pre>
  
  <p>I've tried to delete tag files add value in web.config in D:\bikes and in system/inetpub/wwwroot/web.config but it's still same error. Please anyone help me.</p>