can't delete empty rows from xlsx with vbscript - excel

Question

I've got a vbscript that converts a specific range of rows to a csv file.
My problem is it also copies empty rows. How can I delete complete empty rows before copying or exclude them from copying?
My code:
Public Sub xlsToCsv()
Const WorkingDir = "C:\Test\"
Const xlCSV = 24
Const xlUp = -4162
Dim fso, SaveName, myFile
Dim objExcel, objWorkbook, wsSource, wsTarget
myFile = "source_file.xlsx"
SaveName = "test.csv"
With CreateObject("Scripting.FilesystemObject")
If Not .FileExists(WorkingDir & myFile) Then
MsgBox "File not found:" & vbCrLf & WorkingDir & myFile, vbInformation, "Script Cancelled"
WScript.Quit
End If
End With
Set objExcel = CreateObject("Excel.Application")
objExcel.Visible = False
objExcel.DisplayAlerts = False
Set objWorkbook = objExcel.Workbooks.Open(WorkingDir & myFile)
Set wsSource = objWorkbook.Sheets(1)
Set wsTarget = objWorkbook.Sheets.Add()
With wsTarget
.Cells(1,1).Value = "ID"
.Cells(1,2).Value = "NAME"
.Cells(1,3).Value = "DESC"
End With
wsSource.Activate
wsSource.Range("A:F").Cells.SpecialCells(xlCellTypeBlanks).‌​EntireRow.Delete
With wsSource
.Range("F7", .Range("F" & .Rows.Count).End(xlUp)).Copy wsTarget.Range("A2")
.Range("A7", .Range("A" & .Rows.Count).End(xlUp)).Copy wsTarget.Range("B2")
.Range("E7", .Range("E" & .Rows.Count).End(xlUp)).Copy wsTarget.Range("C2")
End With
objWorkbook.SaveAs WorkingDir & SaveName, xlCSV
objWorkbook.Close True
Set objWorkbook = Nothing
Set objExcel = Nothing
Set fso = Nothing
Set myFolder = Nothing
End Sub
call xlsToCsv()
With this command "wsSource.Range("A:F").Cells.SpecialCells(xlCellTypeBlanks).‌​EntireRow.Delete" ended with the error code 800A0408 - invalid chars.