Ok, I have done this a few times with no problem but now it complains. I looked at the 2.4 documentation and the sample application and there is no problem there so something must be amiss in my application. What can I look for?

In my web form

protected Contact oContact;

In the load

this.oContact = (Contact)this.RegisterPrimaryBizObj(new Contact());

I get this build error:
Cannot convert type OakLeaf.MM.Main.Business.mmBusinessObject to Contact

I am using MM 2.4
Thanks
Tim