Update requires a valid UpdateCommand when passed DataRow collection with modified rows.

First lets start with, I downloaded the 2005 Visual Studio beta 2 ver. and I am programming in Visual Basic.
This is my first project with this language and I let the wizards do all the work. To my suprise the automatic wizard code fail to write the correct code.
Steps
I made a connection to a access database. I installed a dataview grid and then tried to correct data. I got the following error when I tried to (save data). Update requires a valid UpdateCommand when passed DataRow collection with modified rows.
Look at the

PublicOverloadsOverridableFunction Update(ByVal dataTableAs SubContractorsDataSet.SubContractorsDataTable)AsInteger

ReturnMe.Adapter.Update(dataTable)

EndFunction

I read some other articles about this error and they stated to use a database with a primary key, so I changed the 'company' field of my database to use a primary key. but i get the same results.
Does any body know what I can do to correct this.

[1704 byte] By [MSwift] at [2007-12-17]