Little starter help with instance and action of a WOConponent

Hello,

I have been away from WO for sometime and I picked it up again today.
I am having a problem that any instance variable or method I add using
WOBuilder to my Main component can not be found during runtime, but I
see the method and instance code add to main.java

Here is the errors I am getting 

For a instance variable
--------------------------------------------------------
Error:
com.webobjects.foundation.NSKeyValueCoding$UnknownKeyException: [
valueForKey()]: lookup of unknown key: 'aPerson'. This WOComponent does
not have an instance variable of the name aPerson or _aPerson, nor a
method of the name aPerson, _aPerson, getAPerson, or _getAPerson

Reason:
[<Main name: Main subcomponents: null > valueForKey()]: lookup of
unknown key: 'aPerson'. This WOComponent does not have an instance
variable of the name aPerson or _aPerson, nor a method of the name
aPerson, _aPerson, getAPerson, or _getAPerson


------------------------------------------------------------------------------------------


or if I do not used the instance variable in the Main component and just
have a form with a addPerson action I get :

Error:
com.webobjects.foundation.NSKeyValueCoding$UnknownKeyException: [
valueForKey()]: lookup of unknown key: 'addPerson'. This WOComponent
does not have an instance variable of the name addPerson or _addPerson,
nor a method of the name addPerson, _addPerson, getAddPerson, or
_getAddPerson

Reason:
[<Main name: Main subcomponents: null > valueForKey()]: lookup of
unknown key: 'addPerson'. This WOComponent does not have an instance
variable of the name addPerson or _addPerson, nor a method of the name
addPerson, _addPerson, getAddPerson, or _getAddPerson


my main.java code

import com.webobjects.foundation.*;
import com.webobjects.appserver.*;
import com.webobjects.eocontrol.*;
import com.webobjects.eoaccess.*;


public class Main extends WOComponent {
    public Person aPerson;

    public Main(WOContext context) {
        super(context);
		//aPerson = new Person();
    }

    public WOComponent addPerson()
    {
		//aPerson = new Person();
        return null;
    }

}


Any ideas…..

Thank you,

Richard Whittaker