My Joomla component not displaying anything

Question

I have build my own component. I know very well about these stuff but all of sudden I wonder that the joomla request to my custom component is not displaying anything. Its displaying blank page. See this: http://designsoft.bestplacestestserver.com/index.php?option=com_marketplacemanager

Here is the very initial code of 'marketplacemanager.php' file of component where the request is not arriving. Don't know why.

Code - marketplacemanager.php

defined('_JEXEC') or die;

jimport('joomla.application.component.helper');

echo 'aa'; exit; // should have something displayed as here

Answer 1

The problem has been resolved. Actually MVC naming pattern or something else was wrong. I didn't properly renamed my existing component that I was reusing.