Line 10:
Line 11: <asp:SqlDataSource ID="ac210db6" runat="server"
Line 12: ConnectionString="<%$ ConnectionStrings:ac210db6ConnectionString %>"
Line 13: SelectCommand="SELECT [cid] FROM [customers]"></asp:SqlDataSource><br />
The connection name 'ac210db6ConnectionString' was not found in the applications configuration or the connection string is empty. Description: An unhandled exception occurred during the execution of the current web request.
Exception Details: System.InvalidOperationException: The connection name 'ac210db6ConnectionString' was not found in the applications configuration or the connection string is empty.
Any ideas?