Unknown entity class error

deepakbadki · **Joined:** Thu Aug 24, 2006 2:05 am **Posts:** 80

Hi Grp,

Application is throwing an error "Unknown entity class: DALLibrary.Table1" while calling nHibernate.Save method.

Let me know the solutoin for the same.

-Thanks

cwlaualex · **Joined:** Tue Sep 05, 2006 11:15 pm **Posts:** 7

Are you sure that this problem happen only when you call Save? How about loading it? If it's an unknown entity class, I am doubt that there are something wrong in your mapping file that you're not aware.

deepakbadki wrote:

Hi Grp,

Application is throwing an error "Unknown entity class: DALLibrary.Table1" while calling nHibernate.Save method.

Let me know the solutoin for the same.

-Thanks

luedi · **Joined:** Tue Feb 21, 2006 9:50 am **Posts:** 107

normally i got this error when i add a new mapping file to my project and forget to set it's type to "Embedded Resource".

pastafarian · **Joined:** Wed Sep 06, 2006 10:35 am **Posts:** 14

Would this also occur if my application has a mix of annotation and XML mapping?

in the same test app i have I have one class that uses NHibernate.Mapping.Attributes and one class that has a hmb.xml file that I add as an embedded resource. When I run the app, the former mapping works but I get an "Unknown entity class:" exception in NHibernate.Impl.SessionFactoryImpl.GetPersister(Type theClass)

Thanks.

luedi · **Joined:** Tue Feb 21, 2006 9:50 am **Posts:** 107

i'm not familiar with the attribute mapping. Maybe the mix causes the error. Did the error occur for the class with the mapping file or for the class with attributes? If you use mapping files you have to rebuild your solution after adding or modifying a mapping file.

pastafarian · **Joined:** Wed Sep 06, 2006 10:35 am **Posts:** 14

luedi wrote:

i'm not familiar with the attribute mapping. Maybe the mix causes the error. Did the error occur for the class with the mapping file or for the class with attributes? If you use mapping files you have to rebuild your solution after adding or modifying a mapping file.

It happened with the one that used the mapping file. Unfortunately rebuilding the project didn't fix the error. I will try removing the attribute annotations see if that helps.

deepakbadki · **Joined:** Thu Aug 24, 2006 2:05 am **Posts:** 80

Thanks a lot to All.

The problem was with the xml file.After setting the xml file build action type to "Embeded Resource", it works.

Cheers,
Deepak

tnguyen1012 · **Joined:** Fri Sep 15, 2006 4:40 pm **Posts:** 4

I keep getting the Unknown Entity exception. I check to make sure that my *hbm.xml file is correct. However, when I implemented the method, getHibernateTemplate().get("from User user where user.id = ?",args), I get the exception. I am stuck! I exhausted all the possibilities. Please help.

titiksh · **Joined:** Wed Sep 13, 2006 10:25 am **Posts:** 3

luedi wrote:

normally i got this error when i add a new mapping file to my project and forget to set it's type to "Embedded Resource".

hi luedi,
but i am geeting a problem that if i set it's type to embedded resource, the program shows an exception that dialect property is not set, and if set it's type to embeded resource, then it shows an exception on save method that unknown entity type class, pls help