Visual Basic

Hello everyone, I'm new here.
I am desperate for a solution to my problem in the visual basic code.
With the library TagLib I can write ID3v2 tags on mp3. I'm having trouble seeing the text Lyrics on Android devices and I realized that the problem is the text encoding (by TagLib).
With an encoding in ISO-8859-1 or UTF16 everything works good, but with UTF8 encoding will not work.
What I would know is how can I set the encoding TagLib write ISO-8859-1.
I do not know how, but it is the library that selects and applies automatic text encoding even if I have encode the text before in ISO-8859-1.
How can I fix?

Here's the code:

Imports TagLib

Dim Testo As String = "Text Lyrics"
Dim mp3 As TagLib.File = TagLib.File.Create("C:\Music.mp3")

'convertion in iso-8859-1
'Dim byText() As Byte = System.Text.Encoding.Unicode.GetBytes(Testo)
'Dim strTemp As Byte() = Encoding.Convert(Encoding.UTF8, Encoding.GetEncoding("iso-8859-1"), byText)

mp3.Tag.Lyrics = Testo 
mp3.Save()
mp3.Dispose()

lv_JobStatus.Groups.Add(New ListViewGroup() With {
   .Name = m_invoiceNumber,
   .Header = m_invoiceNumber & " - " & m_companyName,
   .HeaderAlignment = HorizontalAlignment.Left,
   .Tag = idx
})

For Each contact As model_ar_contactRecord In customer.FCONTACTS

    Dim item1 As New ListViewItem(m_invoiceNumber, idx)
    item1.Checked = False
    item1.SubItems.Add(m_item_customerNumber)
    item1.SubItems.Add(m_item_companyName)
    item1.SubItems.Add(contact.FCONTACT)
    item1.SubItems.Add(contact.FEMAIL)
    item1.SubItems.Add(If(dwXCode = 0, "X", ""))
    item1.SubItems.Add("")

    lv_JobStatus.Items.Add(item1)
    lv_JobStatus.EndUpdate()

 Next

Dim PTCache As PivotCache = ThisApp.ThisWorkbook.PivotCaches.Create(SourceType:= _ Excel.XlPivotTableSourceType.xlDatabase, SourceData:=ws2.Range("A1").CurrentRegion.Address)

Dim PTable As Excel.PivotTable = ThisApp.PivotTables.Add(PivotCache:=PTCache, TableDestination:=_ ws3.Range("A1"), TableName:="DaPTable")

m PTCache As PivotCache = ThisApp.ThisWorkbook.PivotCaches.Create(SourceType:= _ Excel.XlPivotTableSourceType.xlDatabase, SourceData:=ws2.Range("A1").CurrentRegion.Address). CreatePivotTable(PivotCache:=PTCache, TableDestination:=_ ws3.Range("A1"), TableName:="DaPTable")

Hello,
Please help me to solve this problem. I tried to make a code to save a dwg file in pdf form.
These mesag of error belongs to me
AcadPlot: Not defined
AcadPlotConfigurations: type AcadPlotConfigurations no defined
AcPlotScale: AcPlotScale name not declared
Below the code:
 
 
Module Mdl_Print
Public Sub PDF_Print()
'Dim AutoCAD As Object
Dim AcadApp As Object
Dim AcadDoc As Object
Dim dirInfo As New DirectoryInfo(Frm_Main.LblFolder1.Text)
Dim fileInfo As FileInfo
Dim AcadApp As AcadApplication = New AcadApplication
AcadApp.Visible = True
AcadApp.WindowState = AcWindowState.acMax
Dim success As Boolean = False

For Each fileInfo In dirInfo.GetFiles("*.dwg") 'dwg for Autocad
AcadDoc = AcadApp.Documents.Open(fileInfo.FullName)

Dim oSS As AcadSelectionSet
oSS = AcadApp.ActiveDocument.SelectionSets.Add("oSS")
oSS.Clear()

Try
Dim ftype(0) As Int16
Dim fdata(0) As Object
ftype(0) = 410 'layout
fdata(0) = "A3 - ENGLISH"
oSS.Select(AcSelect.acSelectionSetAll, , , ftype, fdata)
Dim objPrefFiles As AcadPreferencesFiles
Dim PC3PathOld As String
Dim PC3PathNew As String
Dim PMPPathOld As String
Dim PMPPathNew As String
Dim PtConfigs As AcadPlotConfigurations
Dim PlotConfig As AcadPlotConfiguration
Dim PtObj As AcadPlot
Dim BackPlot As Object
'Set the preferences object
objPrefFiles = AcadDoc.Application.Preferences.Files
'Get the current Printer Config Path (pc3)
PC3PathOld = objPrefFiles.PrinterConfigPath
MessageBox.Show(PC3PathOld, "old Printer Config path (pc3)")
objPrefFiles.PrinterConfigPath = "C:\Users\ROBERT\Documents\Deb + Herve + Will\B - Herve\Technip\Autocad\1st project\OpenExcel\PC3 Files"
PC3PathNew = objPrefFiles.PrinterConfigPath
MessageBox.Show(PC3PathNew, "new Printer Config path (pc3)")
'Get the current Printer Desc Path (pmp)
PMPPathOld = objPrefFiles.PrinterDescPath
MessageBox.Show(PMPPathOld, "Printer Desc Path (pmp)")
objPrefFiles.PrinterDescPath = "C:\Users\ROBERT\Documents\Deb + Herve + Will\B - Herve\Technip\Autocad\1st project\OpenExcel\PMP Files"
PMPPathNew = objPrefFiles.PrinterDescPath
MessageBox.Show(PMPPathNew, "Printer Desc Path (pmp)")
 
PtObj = AcadDoc.Plot
AcadApp.ActiveDocument.AcPlotType.acExtents()
PtConfigs = AcadDoc.PlotConfigurations
''Add a new plot configuration
PtConfigs.Add("PDF", False)
'
''The plot config you created become active
PlotConfig = PtConfigs.Item("PDF")
''Use this method to set the scale
PlotConfig.StandardScale = AcPlotScale.acScaleToFit
''Updates the plot
PlotConfig.RefreshPlotDeviceInfo()
'Here you specify the pc3 file you want to use
PlotConfig.ConfigName = "Herve.pc3"
'You can select the plot style table here
PlotConfig.StyleSheet = "monochrome.ctb"
'You can select the Scale Line Weight
PlotConfig.ScaleLineweights = True
'Specifies Paper Size
PlotConfig.CanonicalMediaName = "ISO_A4_(210.00_x_297.00_MM)"
'Specifies whether or not to plot using the plot styles
PlotConfig.PlotWithPlotStyles = True
BackPlot = AcadDoc.GetVariable("BACKGROUNDPLOT")
AcadDoc.SetVariable("BACKGROUNDPLOT", 0)
'Updates the plot
PlotConfig.RefreshPlotDeviceInfo()
MessageBox.Show("scale" & PlotConfig.StandardScale)
MessageBox.Show("canonical media name" & PlotConfig.CanonicalMediaName)
MessageBox.Show("config name" & PlotConfig.ConfigName)
MessageBox.Show("plot type" & PlotConfig.PlotType)
MessageBox.Show("scale line weight" & PlotConfig.ScaleLineweights)
'Now you can use the PlotTofile method
If PtObj.PlotToFile(Replace(AcadDoc.FullName, "dwg", "pdf"), PlotConfig.ConfigName) Then
AcadDoc.Utility.Prompt(vbLf + "PDF Was Created")
Else
AcadDoc.Utility.Prompt(vbLf + "PDF Creation Unsuccessful")
End If
'If you wish you can delete the plot configuration you created programmatically, and set the 'BACKGROUNDPLOT' system variable to its original status.
PtConfigs.Item("PDF").Delete()
PlotConfig = Nothing
AcadDoc.SetVariable("BACKGROUNDPLOT", BackPlot)
objPrefFiles.PrinterConfigPath = "C:\Users\ROBERT\AppData\Roaming\Autodesk\AutoCAD 2014\R19.1\enu\Plotters"
objPrefFiles.PrinterDescPath = "C:\Users\ROBERT\AppData\Roaming\Autodesk\AutoCAD 2014\R19.1\enu\Plotters\PMP File"
oSS.Clear()
If AcadDoc.Saved Then
AcadDoc.Close(False)
End If
AcadDoc = Nothing
AcadApp.Quit()
AcadApp = Nothing
success = True
Catch ex As Exception
MsgBox(ex.Message + vbLf + ex.StackTrace)
success = False
End Try
' AcadDoc.Close()
AcadDoc = Nothing
' AcadApp.Quit()
Next
AcadApp.Quit()
End Sub
End Module