Publishing site to IIS7 give error.

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IIS7

IIS

Visual-Studio

Hello,


I am using visual studio 2012,IIS7 and web Deploy 3.0 tool to deploy my package.After deploying package iwhen i browse my site i got following error.

"There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined
Config File \\?\C:\inetpub\wwwroot\web.config " .


from my webroot config file i remove settings but still i m getting new error.

"Remove the Target framework 4.0 or above from compliation tag".

I google a lot and replace my webconfig section with the code provided but still getting error.

I change my Application pool to 4.0 but error is still coming.

Please help me out as i m stuck in this error.
Thanks