Nodejs d3包给出错误

Question

尝试在node.js上使用d3包时，我遇到了以下错误。

   {
       "ingestionTime": 1435227001159,
       "timestamp": 1435227000775,
       "message": "\n/var/task/node_modules/d3/d3.js:562\n"
   },
   {
       "ingestionTime": 1435227001159,
       "timestamp": 1435227000775,
       "message": "    return n.querySelector(s);\n"
   },
   {
       "ingestionTime": 1435227001159,
       "timestamp": 1435227000775,
       "message": "             ^\n"
   },
   {
       "ingestionTime": 1435227001159,
       "timestamp": 1435227000835,
       "message": "TypeError: Cannot call method 'querySelector' of undefined\n"
   },
   {
       "ingestionTime": 1435227001159,
       "timestamp": 1435227000835,
       "message": "    at d3_select (/var/task/node_modules/d3/d3.js:562:14)\n"
   },
   {
       "ingestionTime": 1435227001159,
       "timestamp": 1435227000835,
       "message": "    at Object.d3.select (/var/task/node_modules/d3/d3.js:1043:17)\n"
   },

我使用了3.5.3和最新的3.5.5，但两者都给出了同样的错误。

我的node.js代码是：

var d3 = require("d3");
var d3MeasureText = require('d3-measure-text');
d3MeasureText.d3 = d3;

var dim = d3MeasureText("Time (days)");
console.dir(dim);

你能帮助我，我做错了什么。谢谢你。