How do I add Debug Breakpoints to lines displayed in a “Find Results” window in Visual Studio

Imports System
Imports System.IO
Imports System.Text.RegularExpressions
Imports EnvDTE
Imports EnvDTE80
Imports EnvDTE90
Imports System.Diagnostics

Public Module CustomMacros
    Sub BreakpointFindResults()
        Dim findResultsWindow As Window = DTE.Windows.Item(Constants.vsWindowKindFindResults1)

        Dim selection As TextSelection
        selection = findResultsWindow.Selection
        selection.SelectAll()

        Dim findResultsReader As New StringReader(selection.Text)
        Dim findResult As String = findResultsReader.ReadLine()

        Dim findResultRegex As New Regex("(?<Path>.*?)((?<LineNumber>d+)):")

        While Not findResult Is Nothing
            Dim findResultMatch As Match = findResultRegex.Match(findResult)

            If findResultMatch.Success Then
                Dim path As String = findResultMatch.Groups.Item("Path").Value
                Dim lineNumber As Integer = Integer.Parse(findResultMatch.Groups.Item("LineNumber").Value)

                Try
                    DTE.Debugger.Breakpoints.Add("", path, lineNumber)
                Catch ex As Exception
                    ' breakpoints can't be added everywhere
                End Try
            End If

            findResult = findResultsReader.ReadLine()
        End While
    End Sub
End Module

Sub BreakPointAtString()

    Try
        DTE.ExecuteCommand("Debug.DisableAllBreakpoints")
    Catch ex As Exception

    End Try

    Dim tsSelection As String = DTE.ActiveDocument.Selection.text
    DTE.ActiveDocument.Selection.selectall()
    Dim AllText As String = DTE.ActiveDocument.Selection.Text

    Dim findResultsReader As New StringReader(AllText)
    Dim findResult As String = findResultsReader.ReadLine()
    Dim lineNum As Integer = 1

    Do Until findResultsReader.Peek = -1
        lineNum += 1
        findResult = findResultsReader.ReadLine()
        If Trim(findResult) = Trim(tsSelection) Then
            DTE.ActiveDocument.Selection.GotoLine(lineNum)
            DTE.ExecuteCommand("Debug.ToggleBreakpoint")
        End If
    Loop

End Sub

Error
---------------------------
Error HRESULT E_FAIL has been returned from a call to a COM component.
---------------------------
OK
---------------------------

Sub BreakPointsFromSearch()
    Dim n As Integer = InputBox("Enter the number of search results")

    For i = 1 To n
        DTE.ExecuteCommand("Edit.GoToNextLocation")
        DTE.ExecuteCommand("Debug.ToggleBreakpoint")
    Next
End Sub