mvc related connection invalid problem

Question

 i am  developing mvc project and i am writting this connection but still i am not connected....

<ConnectionStrings>

<add name="NorthWindConnection" providerName="Sytem.Data.SqlClient" ConnectionString="DataSource=RAM-PC;Initial Catalog=NorthWindDb; User id=sa;password=ramakoti"/>

</ConnectionStrings>

...................................................................................................

Detailed Error Information:

Module IIS Web Core

Notification Unknown

Handler Not yet determined

Error Code 0x80070032

Config Error The configuration section 'ConnectionStrings' cannot be read because it is missing a section declaration

Config File \\?\D:\dotnetpractice\EFCodeFirst\EFCodeFirst\web.config

Requested URL http://localhost:2669/NorthWind/Index

Physical Path

Logon Method Not yet determined

Logon User Not yet determined

Request Tracing Directory C:\Users\user\Documents\IISExpress\TraceLogFiles\

Config Source:

</configSections>

<ConnectionStrings>

<add name="NorthWindConnection" providerName="Sytem.Data.SqlClient" ConnectionString="DataSource=.;Initial Catalog=NorthWindDb; User id=sa;password=xxxxx"/>