title: How to fix error Extender Provider failed to return an Extender for this object when open any report in VS 2019?
body: <p>I installed VS 2019 and opened my project which is built before with VS 2015
  I can open the project and run it without any errors but the error appeared when I try to open any report when double click the report this error show up</p>
  <pre><code> The Extender Provider failed to return an Extender for this object 
  </code></pre>
  <p>I tried the solutions in this question but the error still show and not solved</p>
  <pre><code>https://stackoverflow.com/questions/3397779/extender-provider-failed-to-return-an-extender/7072526
  </code></pre>
  <p>I tried these solutions but still show the error :</p>
  <p>1- Closing the solution in Visual Studio</p>
  <p>2- Deleting the obj and bin directories from the problematic project.</p>
  <p>3- run Visual Studio as administrator</p>
  <p>4- Clean the project close and open again</p>
  <p>5- deleting ProjectName.csproj.user file and then reloading the project.</p>
  <p>6- I have 64 bit runtime and installed 32 runtime</p>
  <p>7- I removed old reference for crystal reports version 13.0.2000.0 and added new references for VS 2019 version 13.0.4000.0</p>
  <p>Also I tried to add new crystal report its added to the project but cannot open it show same error</p>
  <p>I need your help please to solve this issue
  thank you in advance</p>
  <p><a href="https://i.stack.imgur.com/5tuoA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5tuoA.png" alt="enter image description here" /></a></p>