Unrecognized attribute 'targetFramework'.

Question

Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive.

Source Error:

Line 6:  <configuration> 

Line 7:  	<system.web> 

Line 8:      <compilation debug="true" targetFramework="4.0"> 

Line 9:  			<assemblies>

 Line 10: 				<add assembly="sysglobl, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/></assemblies></compilation>

Source File: C:\Inetpub\vhosts\dhuvara.com\httpdocs\sub\asp\web.config Line: 8

I red all the error details regarding this error. everything says that change the framework to 4.0. but actually i am using framework 4.0. i dont know to how to solve it?