Hnibdation error: "urn: nhibernate-mappi" is not declared

Please help me solve this problem. I just learned this HNibernate. Thank you.

This error occurs: leleapplication2.mapping. User. hbm. xml (2, 2): XML validation error: the "urn: nhibernate-mapping-2.2: nhibdation" element is not declared.

 

// Here is the Console

Class Program

1. {
2. Static void Main (string [] args)
3. {
5. Test ();
8. }
9. Static void Test ()
10. {
11. NHibernateHelper db = new NHibernateHelper ();
12. ISession session = db. GetSession ();
13. Using (var trans = session. BeginTransaction ())
14. {
15. User user = new User ();
16. User. Age = 123;
17. User. Name = "janekim ";
18. Session. Save (user );
19. Trans. Commit ();
21. }
22. }

// NHibernateHelper help class

Namespace ConsoleApplication2

1. {
2. Public class NHibernateHelper
3. {
4. Private ISessionFactory sessffacloud;
6. Public NHibernateHelper ()
7. {
8. Sessffacloud = GetSessionFactory ();
10. }
12. Private ISessionFactory GetSessionFactory ()
13. {
14. Configuration config = new Configuration (). AddAssembly (Assembly. GetExecutingAssembly ());
15. Return config. BuildSessionFactory ();
17. }
19. Public ISession GetSession ()
20. {
21. Return sessffacloud. OpenSession ();
22. }
26. }
27. }

// Here is User. hbm. xml

<? Xml version = "1.0" encoding = "UTF-8"?>

1. <Nhib1_xmlns = "urn: nhibernate-mapping-2.2">
3. <Class name = "leleapplication2.domain. User, ConsoleApplication2" table = "User"> </class>
5. <Id name = "Id" length = "4">
6. <Generator class = "vative"> </generator>
7. </Id>
9. <Property name = "Name">
10. <Column name = "Name" sqltype = "nvarchar" length = "50" not-null = "true"> </column>
11. </Property>
13. <Property name = "Age">
14. <Column name = "Age" sqltype = "int" length = "4" not-null = "true"> </column>
15. </Property>
17. </Nhib.pdf>

// App. config configuration file