error i kodning men kan ikke finde dem

hej har sidet og lavet på en webbrowser i visual studio men når min web browser er færdig med design og kodning kan jeg ikke builden den pga 8 errors som jeg ikke kan finde eller løse håber der er nogen herinde som gider at prøve at fikse det

Public Class Form1
    Dim int As Integer = 0
    Dim Favorites As String = "C:\app.favorites.dat"
    Dim SW As IO.StreamWriter


   

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim Browser As New WebBrowser
        TabControl1.TabPages.Add("New Page")
        Browser.Name = "Web Browser"
        Browser.Dock = DockStyle.Fill
        TabControl1.SelectedTab.Controls.Add(Browser)
        AddHandler Browser.ProgressChanged, AddressOf Loading
        AddHandler Browser.DocumentCompleted, AddressOf Done
        int = int + 1
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.Homepage)

        If IO.File.Exists(Favorites) = False Then
            IO.File.Create(Favorites)
        Else
        End If

    End Sub

    Private Function favorites() As String
        Throw New NotImplementedException
    End Function

    Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
        ToolStripStatusLabel.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).StatusText
    End Sub

    Private Sub Button6_Click(sender As Object, e As EventArgs) Handles Button6.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Stop()
    End Sub

    Private Sub Button5_Click(sender As Object, e As EventArgs) Handles Button5.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(ComboBox1.Text)
        ComboBox1.Items.Add(ComboBox1.Text)
        HtmlHistory.ListBox1.Items.Add(ComboBox1.Text)
    End Sub

    Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.Homepage)
    End Sub

    Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Refresh()
    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).GoForward()
    End Sub

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).GoBack()
    End Sub


    Private Sub Button7_Click(sender As Object, e As EventArgs) Handles Button7.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate("http://www.google.com/search?sourceid=navclient&ie=UTF-8&r­lz=1T4SUNA_enUS296US296&q=" & TextBox1.Text)
    End Sub


    Private Sub RemoveTapToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles RemoveTapToolStripMenuItem.Click
        If Not TabControl1.TabPages.Count = 1 Then
            TabControl1.TabPages.RemoveAt(TabControl1.SelectedIndex)
            TabControl1.SelectTab(TabControl1.TabPages.Count - 1)
            int = int - 1
        End If
    End Sub

    Private Sub AddTapToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles AddTapToolStripMenuItem.Click
        Dim Browser As New WebBrowser
        TabControl1.TabPages.Add("New Page")
        TabControl1.SelectTab(int)
        Browser.Name = "Web Browser"
        Browser.Dock = DockStyle.Fill
        TabControl1.SelectedTab.Controls.Add(Browser)
        AddHandler Browser.ProgressChanged, AddressOf Loading
        AddHandler Browser.DocumentCompleted, AddressOf Done
        int = int + 1
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(My.Settings.Homepage)
    End Sub


    Private Sub WebsitePropertiesToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles WebsitePropertiesToolStripMenuItem.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).ShowPropertiesDialog()

    End Sub


    Private Sub ExitToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles ExitToolStripMenuItem.Click
        End
    End Sub

    Private Sub Loading(ByVal sender As Object, ByVal e As Windows.Forms.WebBrowserProgressChangedEventArgs)
        ToolStripProgressBar1.Maximum = e.MaximumProgress
        ToolStripProgressBar1.Value = e.MaximumProgress
    End Sub

    Private Sub Done(ByVal sender As Object, ByVal e As Windows.Forms.WebBrowserDocumentCompletedEventArgs)
        TabControl1.SelectedTab.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).DocumentTitle
        ComboBox1.Text = CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Url.ToString
    End Sub


    Private Sub NewWindowToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles NewWindowToolStripMenuItem.Click
        Dim f As New Form1
        f.Show()
    End Sub

    Private Sub PrintToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles PrintToolStripMenuItem.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).ShowPrintDialog()
    End Sub

    Private Sub PrintPreviewToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles PrintPreviewToolStripMenuItem.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).ShowPrintPreviewDialog()
    End Sub

    Private Sub PageSetupToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles PageSetupToolStripMenuItem.Click
        CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).ShowPageSetupDialog()
    End Sub

    Private Sub ComboBox1_KeyDown1(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles ComboBox1.KeyDown
        If e.KeyCode = Keys.Enter Then
            CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate(ComboBox1.Text)
        End If
    End Sub


    Private Sub TextBox1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles TextBox1.KeyDown
        If e.KeyCode = Keys.Enter Then
            CType(TabControl1.SelectedTab.Controls.Item(0), WebBrowser).Navigate("http://www.google.com/search?sourceid=navclient&ie=UTF-8&r­lz=1T4SUNA_enUS296US296&q=" & TextBox1.Text)
        End If
    End Sub
    Private Sub Done(sender As Object, e As WebBrowserDocumentCompletedEventArgs)
        Throw New NotImplementedException
    End Sub

    Private Sub Loading(sender As Object, e As WebBrowserProgressChangedEventArgs)
        Throw New NotImplementedException
    End Sub
End Class