The template code uses .Count for the upper bound of the for loop. eg. For $INDEX$ As Integer = 0 To $LIST$.Count Dim $ELEM$ As $TYPE$ = $LIST$($INDEX$) $END$ Next This is incorrect - it should use .Count -1 eg. the following code used the template, and throws an ArgumentOutOfRangeException Dim list As New List(Of String) list.Add("fred") For i As Integer = 0 To list.Count Dim s As String = list Next