javascript - 初接触Echart,用了个timeline，提示Series has not been initialized yet.

Question

初使用Echarts,就用了timeline,就报错
var myChart = echarts.init(document.getElementById('main'));

var option = {

    timeline : {
        data : [
            '2013-01-01', '2013-02-01', '2013-03-01', '2013-04-01', '2013-05-01',
            { name:'2013-06-01', symbol:'emptyStar6', symbolSize:8 },
            '2013-07-01', '2013-08-01', '2013-09-01', '2013-10-01', '2013-11-01',
            { name:'2013-12-01', symbol:'star6', symbolSize:8 }
        ]
    }
};
myChart.setOption(option);

就这么多代码，谁能告诉我到底什么没有初始化

Answer 1