System.ArgumentException

  HResult=0x80070057

  Message=Contents do not pass checksum

  Source=zxing

  StackTrace:

   at ZXing.OneD.EAN13Writer.encode(String contents)

   at ZXing.OneD.OneDimensionalCodeWriter.encode(String contents, BarcodeFormat format, Int32 width, Int32 height, IDictionary`2 hints)

   at ZXing.BarcodeWriterGeneric`1.Encode(String contents)

   at ZXing.BarcodeWriterGeneric`1.Write(String contents)

   at BarCode.Form1.button1_Click(Object sender, EventArgs e) in C:\Users\Administrator\Desktop\BarCode\BarCode\Form1.cs:line 35

   at System.Windows.Forms.Control.OnClick(EventArgs e)

   at System.Windows.Forms.Button.OnClick(EventArgs e)

   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)

   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

   at System.Windows.Forms.Control.WndProc(Message& m)

   at System.Windows.Forms.ButtonBase.WndProc(Message& m)

   at System.Windows.Forms.Button.WndProc(Message& m)

   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)

   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

   at BarCode.Program.Main() in C:\Users\Administrator\Desktop\BarCode\BarCode\Program.cs:line 18