Hi! I get this exception. Can anybody help me?


Line 16: static HibernateHelper()
Line 17: {
Line 18: sessionFactory = new NHibernate.Cfg.Configuration().Configure().BuildSessionFactory();
Line 19: }
Line 20:

[XmlSchemaException: The 'type' attribute is not declared.]
NHibernate.Cfg.Configuration.ValidationHandler(Object o, ValidationEventArgs args) +7
System.Xml.Schema.BaseValidator.SendValidationEvent(XmlSchemaException e, XmlSeverityType severity) +58
System.Xml.Schema.XsdValidator.ValidateStartElement() +837
System.Xml.Schema.XsdValidator.ProcessElement(Object particle) +338
System.Xml.Schema.XsdValidator.ValidateElement() +192
System.Xml.Schema.XsdValidator.Validate() +68
System.Xml.XmlValidatingReaderImpl.ProcessCoreReaderEvent() +125
System.Xml.XmlValidatingReaderImpl.Read() +44
System.Xml.XmlValidatingReader.Read() +12
System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace) +789
System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc) +51
System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace) +278
System.Xml.XmlDocument.Load(XmlReader reader) +97
NHibernate.Cfg.Configuration.LoadMappingDocument(XmlTextReader hbmReader) +178
NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream) +64

[MappingException: The 'type' attribute is not declared.]
NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream) +173
NHibernate.Cfg.Configuration.AddAssembly(Assembly assembly, Boolean skipOrdering) +243
NHibernate.Cfg.Configuration.AddAssembly(String assemblyName) +158
NHibernate.Cfg.Configuration.DoConfigure(XmlDocument doc) +618
NHibernate.Cfg.Configuration.Configure(XmlTextReader reader) +296
NHibernate.Cfg.Configuration.Configure(String resource) +65
NHibernate.Cfg.Configuration.Configure() +44
HibernateHelper..cctor() in C:\jobb\vs2005 projects\Com\Com.DataAccess\HibernateHelper.cs:18

[TypeInitializationException: The type initializer for 'HibernateHelper' threw an exception.]
HibernateHelper.GetCurrentSession() in C:\jobb\vs2005 projects\Com\Com.DataAccess\HibernateHelper.cs:33
Com.DataAccess.ContactHandler.SaveContact(String firstName, String lastName, String email, String telephone) in C:\jobb\vs2005 projects\Com\Com.DataAccess\ContactHandler.cs:55
AddressBook.Button1_Click(Object sender, EventArgs e) +54
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +75
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +98
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4919

You've put a 'type="???"' attribute on an element that doesn't support it. Check your mapping file against the DTD. It's probably something like a one-to-many (which uses class="???") or a key (which doesn't use anything to describe its type).