I wrote a script to create a yes/no drop-down list. However, in the few tries at first, it worked perfectly. However, later on, there's an error message "Run time error 1004: Select method of Range class failed"
Sub Drop_Down_List()
Worksheets("Sheet1").Range("M2:N2851").Select
    With Selection.Validation
        .Delete
        .Add Type:=xlValidateList, AlertStyle:=xlValidAlertStop, Operator:=xlBetween, Formula1:="Yes,No"
        .IgnoreBlank = True
        .InCellDropdown = True
        .InputTitle = ""
        .ErrorTitle = ""
        .InputMessage = ""
        .ErrorMessage = ""
        .ShowInput = True
        .ShowError = True
    End With
    
End Sub
