Open-XML-SDK: Documents fail to open on Mono with System.IO.Packaging library

When I use the following code： https://msdn.microsoft.com/en-us/library/office/gg575571.aspx

static void ReadExcelFileDOM(string fileName)
{
    using (SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Open(fileName, false))
    {
        WorkbookPart workbookPart = spreadsheetDocument.WorkbookPart;
        WorksheetPart worksheetPart = workbookPart.WorksheetParts.First();
        SheetData sheetData = worksheetPart.Worksheet.Elements<SheetData>().First();
        string text;
        foreach (Row r in sheetData.Elements<Row>())
        {
            foreach (Cell c in r.Elements<Cell>())
            {
                text = c.CellValue.Text;
                Console.Write(text + " ");
            }
        }
        Console.WriteLine();
        Console.ReadKey();
    }
}

SpreadsheetDocument.Open() will report error PackageRelationship target must be relative URI if TargetMode is Internal. Parameter name: targetUri

IDE: Visual Studio for Mac .NET Runtime: Mono 5.0.1.1 OpenXML: 2.7.2.0 OS: macOS 10.12.5