请问下domConstruct.create("div")这个为什么会报错

var popup = new esri.dijit.Popup({ fillSymbol: new esri.symbol.SimpleFillSymbol(esri.symbol.SimpleFillSymbol.STYLE_SOLID, new esri.symbol.SimpleLineSymbol(esri.symbol.SimpleLineSymbol.STYLE_SOLID, new esri.Color([255, 0, 0]), 2), new esri.Color([255, 255, 0, 0.25])) },dojo.domConstruct.create("div"));
这个是具体代码