Excel VBA - 数据验证 - 间接列表错误＆＃39; 1004＆＃39;

Question

我试图间接引用VBA中的列表但仍然遇到运行时错误1004.

我需要在下面定义的范围中添加数据验证，它将查看上一列中单元格的值，以确定要显示的列表。

非常感谢任何帮助。

Range("Q2:Q" & LastRow).Select
 With Selection.Validation
    .Delete
    .Add Type:=xlValidateList, AlertStyle:=xlValidAlertStop, Operator:= _
    xlBetween, Formula1:="=INDIRECT(RC[-1])"
    .IgnoreBlank = True
    .InCellDropdown = True
    .InputTitle = ""
    .ErrorTitle = ""
    .InputMessage = ""
    .ErrorMessage = ""
    .ShowInput = True
    .ShowError = True
End With

NB我也尝试过了;

    .Add Type:=xlValidateList, AlertStyle:=xlValidAlertStop, Operator:= _
    xlBetween, Formula1:="=INDIRECT($P2)"