Division by Zero exception when compressing empty folder

[dotted]

Steps to reproduce on version 2.0b3

1. Create new folder
2. Attempt to compress the folder though Compact GUI, and it should go boom.

For the record I tested using the following folder names:

• .GoPro
• .QtWebEngineProcess
• Test

All the folders were empty and caused the exception.

Stack trace, apologies for being in danish:

Se slutningen af denne meddelelse, hvis du vil have detaljer om,
hvordan du starter JIT-fejlfinding i stedet for denne dialogboks.

************** Undtagelsestekst **************
System.DivideByZeroException: Det blev forsøgt at dividere med nul.
   ved System.Decimal.FCallDivide(Decimal& d1, Decimal& d2)
   ved Microsoft.VisualBasic.CompilerServices.Operators.DivideDecimal(IConvertible Left, IConvertible Right)
   ved Microsoft.VisualBasic.CompilerServices.Operators.DivideObject(Object Left, Object Right)
   ved CompactGUI.Compact.CalculateSaving()
   ved CompactGUI.Compact.ProgressTimer_Tick(Object sender, EventArgs e)
   ved System.Windows.Forms.Timer.OnTick(EventArgs e)
   ved System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
   ved System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

[Iridium-IO]

#95 Why are you guys trying to compress empty folders 😠

[TjReiny]

thats so normal what should it compress when there is nothing to compress?
errorhandling is all to be done