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:   
Line 7:  	 
Line 8:       
Line 9:  			
 Line 10:

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?