title: SSRS - Internal server 500 error
body: <p>I am getting Http 500 error while rendering reportviewer. 
   the server responded with a status of 500 (Internal Server Error)
  See the error below</p>
  
  <pre><code>http://localhost:59214/Reserved.ReportViewerWebControl.axd?OpType=SessionKeepAlive&amp;ControlID=837415b70bc74a908169e1274b125c25
  Failed to load resource: the server responded with a status of 500
  (Internal Server Error)
  </code></pre>
  
  <p>I tried adding the following:</p>
  
  <ol>
  <li>Added handler in <code>&lt;webserver&gt;</code>ie.</li>
  </ol>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>      &lt;add name="ReportViewerWebControlHandler" preCondition="integratedMode" verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=12.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" /&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <ol start="3">
  <li>Page directive added <code>ValidateRequest="false"</code></li>
  <li>AsyncRender ="False" in reportviewer.</li>
  </ol>
  
  <p>Please help still i am getting the 500 error. I am using Vs2017 with Microsoft Report 12.0</p>
  
  <h2>Update</h2>
  
  <p>See the Log file of SSRS server
  [Log File - click to see][1]</p>
  
  <p>[1]: <a href="https://drive.google.com/file/d/1cU9TzLdDPFiLzUbmyYR0FA9_p8CV_Joz/view?usp=sharing" rel="nofollow noreferrer">https://drive.google.com/file/d/1cU9TzLdDPFiLzUbmyYR0FA9_p8CV_Joz/view?usp=sharing</a>. My report is <strong><em>/Development/pd_Report_SalesPricingGrid</em></strong>. Highlighted in the log bold and red.</p>