“实体名称必须紧跟实体参考中的'＆'。”

I am trying to create a pdf through a custom suitelet I made in netusite. I am using the API "nlapiXMLToPDF" to create the pdf. When I try and get values from Netsuite (using javascript) that contain an ampersand (&), and try creating the pdf, I get the error I am trying to create a pdf through a custom su