How can I get more details about error?

Text: There are two ways which could provide more details about error:

1. A "Debug=true" directive at the top of the file that generated the error. For example:

<%@ Page Language="C#" Debug="true" %>

2. The following section in the configuration file of your application:

<configuration>
<system.web>
<compilation debug="true"/>
</system.web>
</configuration>