Greetings Kevin,

I did check the suggestions Paul made. The app is in C#. I amm instantiating an instance of AAppTest first. I'm still getting the error.

I added the business object project to an existing solution that had the data and a fes web pages a class diagram and some cs files in the app_code folder that were genereated from the class diagram.

Regards,

E.R.

>E.R.
>
>>I'm having some problems with the AAppTest and the Object Test Bench. When I try to invoke a method on my object I get a message that the project needs to be rebuilt. After rebuilding the project I still get the same message.
>
>Paul's suggestions are good ones. In addition, are you instantiating an instance of AAppTest first to set up the runtime environment? If you are and it's still not working, try instantiating a very simple object and see if that works. Also, are you using VB .NET or C#?
>
>Best Regards,