please help, i am trying to edit the web.config file from within a web app but i am getting this error


Server Error in '/IISapps' Application.
--------------------------------------------------------------------------------

The same table (add) cannot be the child table in two nested relations.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: The same table (add) cannot be the child table in two nested relations.



i have crystal reports and appSettings setup in my web.config file:

<compilation>
<assemblies>
<add assembly="CrystalDecisions.CrystalReports..../>
<add assembly="CrystalDecisions.ReportSource..../>
<add assembly="CrystalDecisions.Shared..../>
<add assembly="CrystalDecisions.Web..../>
</assemblies>
</compilation>

and

<appSettings>
<add key="gConnection" value="data source=localhost../>
</appSettings>

so there are two streams of "add" can i change these so i can use this line of code:

Dim dr() As DataRow = ds.Tables("add").Select(String.Concat("key='", key, "'"))

???????

any ideas??