nhibernate has invalid child element 'add'

[listentomyblues]

I'm having issues running my application where it uses nhibernate. the runtime issue I'm getting is:

The element 'session-factory' in namespace 'urn:nhibernate-configuration-2.2' has invalid child element 'add' in namespace 'urn:nhibernate-configuration-2.2'. List of possible elements expected: 'property, mapping, class-cache, collection-cache, event, listener' in namespace 'urn:nhibernate-configuration-2.2'.

My code is:

protected void Initialization(Assembly[] assemblies, string fileName)
		{
			logger.DebugFormat( @"Initialization Start {0:HH:mm:ss.fff}", DateTime.Now );

			SessionFactory = Fluently
				.Configure(
					new Configuration()
						.Configure( fileName )
				)
				.Mappings( x => assemblies
					.ForEach( a => x
						.FluentMappings
						.AddFromAssembly( a )
						.Conventions
						.Add(
							AutoImport.Never(),
							DefaultCascade.All(),
							DefaultLazy.Always(),
							ForeignKey.EndsWith( "Id" ),
							PrimaryKey.Name.Is( c => c.EntityType.Name + "Id" ),
							Table.Is( c => "[" + c.EntityType.Name + "]" )
						)
					)
				)
				.BuildSessionFactory();

			logger.DebugFormat( @"Initialization Finish {0:HH:mm:ss.fff}", DateTime.Now );
		}

filename contents:

<?xml version='1.0' encoding='utf-8'?>
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2">
	<session-factory>
		<property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
		<property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
		<add name="CoreDbContext" connectionString="Data Source=(localdb)\\mssqllocaldb;Initial Catalog=Database_name;Integrated Security=True;MultipleActiveResultSets=True" providerName="System.Data.SqlClient"/>
		<property name="show_sql">true</property>
		<property name="dialect">NHibernate.Dialect.MsSql2008Dialect</property>
	</session-factory>
</hibernate-configuration>

I already installed Full-Text and Semantic Extractions for Search but it still didn't fix my issue

[listentomyblues]

I manage to fix the issue. I changed the <add> in the xml file into <property>