chart.js (intermediate value).Line is not a

Question

$(function(){var ctx = $("#chatbox").get(0).getContext("2d"); window.myNewChart = new Chart(ctx).Line(data);;new Chart(ctx).Line(data); var data = {     labels : ["January","February","March","April","May","June","July"],     datasets : [          {             fillColor : "rgba(220,220,220,0.5)",                       strokeColor : "rgba(220,220,220,1)",                       pointColor : "rgba(220,220,220,1)",             pointStrokeColor : "#fff",                       data : [65,59,90,81,56,55,40]          },          {             fillColor : "rgba(151,187,205,0.5)",                       strokeColor : "rgba(151,187,205,1)",                       pointColor : "rgba(151,187,205,1)",             pointStrokeColor : "#fff",                        data : [28,48,40,19,96,27,100]          }      ]}});新手求助...刚学这个..为什么会出现 (intermediate value).Line is not a function(…)引入的文件是Chart.js