The site '%1' is currently configured for use with ASP.NET %2. This project is targeting ASP.NET %3; if not configured some ...

The site '%1' is currently configured for use with ASP.NET %2. This project is targeting ASP.NET %3; if not configured some features may make incorrect assumptions, and pages designed with the tool may not render correctly.

Would you like the site to be configured for use with ASP.NET %3?