google pie chart cannot export to word 2016 c# .net

Question

Sir,<br /> <br />I have using google pie chart in MVC4 project. But it can not exporting to word 2016 only. I have attached error file.<br />Please look upon it and kindly relpay me.<br /><br />In the project using:-<br /><br />using Novacode;<br />using Word = Microsoft.Office.Interop.Word;<br /><br />And also using reference dll is 'docx'.<br /><br />Regards,<br />Abhilash.J.A