Flash Builder debugger failed to connect to the running application with tomcat
<p>I had look into similar question in the stack overflow and tried all the solutions given there, but nothing works for me.</p>

<p>I have a Flex Web application running in localhost with tomcat, i have used Mongrel plugin in Flash Builder to run tomcat.</p>

<p>I am using Firefox browser.</p>

<p>When I try to debug my application it is throwing below error :</p>

<blockquote>
  <p>The Flash Builder debugger failed to connect to the running
  application.</p>
  
  <p>Ensure that:</p>
  
  <ol>
  <li><p>For in-browser applications, you are running the debugger version of Flash Player.</p></li>
  <li><p>For network debugging on a mobile device, you have a reliable network connection to the device, and port 7935 is open on your
  machine's firewall.
    Device connection help</p></li>
  </ol>
</blockquote>

<p><a href="https://i.stack.imgur.com/RzDcp.png" rel="nofollow noreferrer">link : error screenshot</a></p>

<p><img src="https://i.stack.imgur.com/RzDcp.png" /></p>

<p>I did check with netstat for port 7935  and there is no service running on this port.</p>

<p>I also added the solutions in catalina.properties file as suggested by others in related question but it did not worked out.</p>

<p>kindly help me fix this problem.</p>

<p>Thanks in advance!</p>