Error Loop Variable cannot be global

["Mayost Sharon" <sharon@xxxxxxxxx>]

Hello

I try to run this code:

' Gambas module file

Public $vList As String[] = ["a", "b", "c"]
Public $vStr As String

Public Sub Main()
  
  For Each $vStr In $vList
    Debug $vStr   
  Next

End


and it gives an error:
Error Loop Variable cannot be global

Thanks