Hibernate version: 1.0.2

How do I load the mapping files from an assembly which is not located in a subdirectory of the application instead of directly in the application directory?

At the moment I get always an error:

NHibernate.MappingException: persistent class myNamespace.myClass, myAssembly not found ---> System.TypeLoadException: Could not load type 'myNamespace.myClass, myNamespace.myClass', check that type and assembly names are correct

What I do is the following:


The configuration will be read in without any problems. The mapping file will be read in too. But the persistent class can not be found.
It is a really big problem for me because I can not change the directory structure and have to place the related dll into a subdirectory instead of the application directory.
For test purposes I put the assembly in the main directory an it seems to work.
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It is really hard for me to believe that noone knows a possiblity to let NHibernate looking in a subdirectory for an assembly. Does really noone know it?

Try to add this section to .config file of your application (app.config or web.config)

<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<probing privatePath="YourSubDir"/>
</assemblyBinding>

I really get trouble with this. I think the hint with the config file is right, but it is not possible for me to get it working.

But the basic question is why nhibernate do not found the assembly. I call the AddAssembly method with the related assembly as parameter so I do not understand why this parameter will be discard and the load process starts with reflection and a location search of the assembly. Probably a bug?

AddAssembly only searches through the assembly to find embedded mapping files. These mapping files contain class names which NHibernate tries to resolve using .NET reflection (i.e. Type.GetType or Assembly.Load plus Assembly.GetType). At this latter stage NHibernate doesn't know that the assembly it used to load mapping files from also contains the classes, so the problem occurs.