I'm learning NHibernate and I added <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> to App.config. Visual Studio reported a message:
Could not find schema information for the element 'urn:nhibernate-configuration-2.2:hibernate-configuration'.
I know this is not a problem, but if VS knew the schema, IntelliSense would work. How can I add the schema?