Color a specific cell in a GridView DevExpress

See more:

C#

DevExpress

I am getting this error while using appearance setting to color a cell

'DevExpress.XtraGrid.StyleFormatCondition' does not contain a definition for 'Appearance'

this the code that i'm trying to use, please help

private void gridView3_RowCellStyle(object sender, DevExpress.XtraGrid.Views.Grid.RowCellStyleEventArgs e)
{
    GridView View = sender as GridView;
    if (e.Column.FieldName == "First Name" &&
        string.IsNullOrEmpty(View.GetRowCellDisplayText(e.RowHandle, e.Column)))
    {
        e.Appearance.BackColor = Color.DeepSkyBlue;
    }
}