When I Insert 'ScriptManager' in my Page I get This error:
Element 'ScriptManager' is not a known element. This can occur if there is a compilation error in the Web site, or the web.config file is missing.
While I Have web.config in my project I get this error. Must I Add statement to web.config ?Also when I type(handy) '<asp:s' intellisense does not work for 'ScriptManager'. Also My web.config is like this:
<compilation debug="true" targetFramework="4.0"/>