title: HTTP Error 500.23 after adding dotless to my local website
body: <p>Hi I'm trying to run <a href="http://www.dotlesscss.org/" rel="noreferrer">dotless</a> on my local .net4 web site</p>
  
  <p><strong>My web config looks like this:</strong></p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;configuration&gt;
    &lt;configSections&gt;
      &lt;section name="dotless" type="dotless.Core.configuration.DotlessConfigurationSectionHandler, dotless.Core" /&gt;
    &lt;/configSections&gt;
    &lt;system.web&gt;
      &lt;compilation debug="true" targetFramework="4.0" /&gt;
    &lt;httpHandlers&gt;&lt;add path="*.less" verb="GET" type="dotless.Core.LessCssHttpHandler, dotless.Core" /&gt;&lt;/httpHandlers&gt;&lt;/system.web&gt;
  &lt;dotless minifyCss="false" cache="true" web="false" /&gt;
  
      &lt;system.webServer&gt;
          &lt;handlers&gt;
              &lt;add name="dotless" path="*.less" verb="GET" type="dotless.Core.LessCssHttpHandler,dotless.Core" resourceType="File" preCondition="" /&gt;
          &lt;/handlers&gt;
      &lt;/system.webServer&gt;
  &lt;/configuration&gt;
  </code></pre>
  
  <p><strong>Here is the error I get</strong></p>
  
  <pre><code>HTTP Error 500.23 - Internal Server Error
  An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode.
  Most likely causes:
  
      This application defines configuration in the system.web/httpHandlers section.
  </code></pre>
  
  <p>Can you please help?</p>