title: JMeter: "Response code: 500, Response message: Internal Server Error" in Sampler Result
body: <p>I am extracting all dynamic values of my asp.net Website dynamically however, I can see "Response code: 500, Response message: Internal Server Error" in Sampler Result.</p>
  
  <p>Below is the Request from View Results in a Tree:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>POST http://MyURL/MyPortal/login.aspx
  
  POST data:
  __VIEWSTATE=%2FwEPDwUKMTI3MjAzNjAzNGRkjr4joFF5LWOOmI2LfqKYaLCnJoWEEuersumW%2Fyg8oSE%3D&amp;__EVENTVALIDATION=%2FwEdAAe%2FZNCyf7CfdyOuzLZ7mDoL9Tt6KoVd96dN6zOjIKoOlInkg%2Fut7Je4AtoEsfzZAOLszNp1xh91HdjgSkSmA8AOAmWyFUPYYwjYUgZAnHgtx2Vqz9dZFL0pGDKPfgeuicZtnfqjBya34OcE2Eru6nT4MwnrIcmty4bwVAU6VEb6qrGc%2BEe7Y58My78ZHzJqq0k%3D&amp;txtUserID=1111111&amp;txtPWD=ASDF&amp;BtnSubmit=Submit&amp;hdnE=5&amp;hdnN=323&amp;hdnD=173
  
  Cookie Data:
  ASP.NET_SessionId=e0ibh0ihceof54ulvhkx1
  
  Request Headers:
  Connection: keep-alive
  Referer: http://MyURL/MyPortal/login.aspx
  Accept-Language: en-US,en;q=0.5
  Content-Type: application/x-www-form-urlencoded
  Accept-Encoding: gzip, deflate
  User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
  Content-Length: 386</code></pre>
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  <p>And, Response Code is:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
      &lt;head&gt;
          &lt;title&gt;Runtime Error&lt;/title&gt;
          &lt;meta name="viewport" content="width=device-width" /&gt;
          &lt;style&gt;
           body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;} 
           p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
           b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
           H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
           H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
           pre {font-family:"Consolas","Lucida Console",Monospace;font-size:11pt;margin:0;padding:0.5em;line-height:14pt}
           .marker {font-weight: bold; color: black;text-decoration: none;}
           .version {color: gray;}
           .error {margin-bottom: 10px;}
           .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
           @media screen and (max-width: 639px) {
            pre { width: 440px; overflow: auto; white-space: pre-wrap; word-wrap: break-word; }
           }
           @media screen and (max-width: 479px) {
            pre { width: 280px; }
           }
          &lt;/style&gt;
      &lt;/head&gt;
  
      &lt;body bgcolor="white"&gt;
  
              &lt;span&gt;&lt;H1&gt;Server Error in '/MyPortal' Application.&lt;hr width=100% size=1 color=silver&gt;&lt;/H1&gt;
  
              &lt;h2&gt; &lt;i&gt;Runtime Error&lt;/i&gt; &lt;/h2&gt;&lt;/span&gt;
  
              &lt;font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif "&gt;
  
              &lt;b&gt; Description: &lt;/b&gt;An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
              &lt;br&gt;&lt;br&gt;
  
              &lt;b&gt;Details:&lt;/b&gt; To enable the details of this specific error message to be viewable on remote machines, please create a &amp;lt;customErrors&amp;gt; tag within a &amp;quot;web.config&amp;quot; configuration file located in the root directory of the current web application. This &amp;lt;customErrors&amp;gt; tag should then have its &amp;quot;mode&amp;quot; attribute set to &amp;quot;Off&amp;quot;.&lt;br&gt;&lt;br&gt;
  
              &lt;table width=100% bgcolor="#ffffcc"&gt;
                 &lt;tr&gt;
                    &lt;td&gt;
                        &lt;code&gt;&lt;pre&gt;
  
  &amp;lt;!-- Web.Config Configuration File --&amp;gt;
  
  &amp;lt;configuration&amp;gt;
      &amp;lt;system.web&amp;gt;
          &amp;lt;customErrors mode=&amp;quot;Off&amp;quot;/&amp;gt;
      &amp;lt;/system.web&amp;gt;
  &amp;lt;/configuration&amp;gt;&lt;/pre&gt;&lt;/code&gt;
  
                    &lt;/td&gt;
                 &lt;/tr&gt;
              &lt;/table&gt;
  
              &lt;br&gt;
  
              &lt;b&gt;Notes:&lt;/b&gt; The current error page you are seeing can be replaced by a custom error page by modifying the &amp;quot;defaultRedirect&amp;quot; attribute of the application&amp;#39;s &amp;lt;customErrors&amp;gt; configuration tag to point to a custom error page URL.&lt;br&gt;&lt;br&gt;
  
              &lt;table width=100% bgcolor="#ffffcc"&gt;
                 &lt;tr&gt;
                    &lt;td&gt;
                        &lt;code&gt;&lt;pre&gt;
  
  &amp;lt;!-- Web.Config Configuration File --&amp;gt;
  
  &amp;lt;configuration&amp;gt;
      &amp;lt;system.web&amp;gt;
          &amp;lt;customErrors mode=&amp;quot;RemoteOnly&amp;quot; defaultRedirect=&amp;quot;mycustompage.htm&amp;quot;/&amp;gt;
      &amp;lt;/system.web&amp;gt;
  &amp;lt;/configuration&amp;gt;&lt;/pre&gt;&lt;/code&gt;
  
                    &lt;/td&gt;
                 &lt;/tr&gt;
              &lt;/table&gt;
  
              &lt;br&gt;
  
      &lt;/body&gt;
  &lt;/html&gt;</code></pre>
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