reflection: invoke constructor, properties have "<error: an exception

[Daniel]

hi ng,

i want to invoke a dynamically created object with reflection, like:


public static object createInstance(string classname, string assemblyName)
{
object obj=null;
Assembly assembly=
Assembly.LoadFile(AppSettings.Root+@"bin\"+assemblyName);
obj=assembly.CreateInstance(classname);
return obj;
}

what happens is that all the properties of the object show a

<error: an exception of type: {System.ArgumentException} occurred> string

in the debugger.
whereas the prtivate fields have the correct null value.
what is wrong there?
i don't get it.

thank you very much for your help!

dan