ASP.NET book survey example doesn't work

In the SitePoint book, “Build Your Own ASP.NET 4 Website Using C# & VB”, there is an example of a survey page. The author’s example does not work as published and gives the error, " ‘feedbackLabel’ is not declared. It may be inaccessible due to its protection level." I have tried all of the access modifiers but that didn’t fix it.

The calling statement is:
"asp:Label id="feedbackLabel" runat="server"

and the sub is:

script runat="server"
    Sub Click(ByVal s As Object, ByVal e As EventArgs)
        Dim i As Integer
        feedbackLabel.Text = "Your name is: " & name.Value & "br/"
        feedbackLabel.Text += "Your email is: " & email.Value & "br "
        feedbackLabel.Text += "You like to work with:br "
        For i = 0 To serverModel.Items.Count - 1
            If serverModel.Items(i).Selected Then
                feedbackLabel.Text += " - " & _
                    serverModel.Items(i).Text & "br "
            End If
        Next i
        feedbackLabel.Text += "You like .NET: " & likeDotNet.Value
    End Sub

The book is: Build Your Own ASP.NET 4 Website Using C# & VB
I’m using Visual Studio 2017 on Windows 10

Any help would be greatly appreciated.

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