<t>Modify your constructor to the following so that it calls the base class constructor properly:<br/>
<br/>
public class MyExceptionClass : Exception<br/>
{<br/>
public MyExceptionClass(string message, string extrainfo) : base(message)<br/>
{<br/>
//other stuff here<br/>
}<br/>
}<br/>
<br/>
```<br/>
<br/>
Note that a constructor is not something that you can call anytime within a method. That's the reason you're getting errors in your call in the constructor body.</t>
