Incubator-echarts: Cannot use 'in' operator to search for '_ec_inner' in undefined

[chm74]

问题简述 (One-line summary

报错
echarts.js:1895 Uncaught TypeError: Cannot use 'in' operator to search for '_ec_inner' in undefined

版本及环境 (Version & Environment)

• ECharts 版本 (ECharts version):3.0
• 浏览器类型和版本 (Browser version):谷歌
• 操作系统类型和版本 (OS Version):
  

  重现步骤 (Steps to reproduce)

1.
2.

期望结果 (Expected behaviour)

可能哪里有问题 (What went wrong)

ECharts配置项 (ECharts option)

var chart;
var option;

(function(echarts){
    chart = echarts.init(document.getElementById("chart"));
    $.get('json/lines-bus.json', function(data) {
        debugger
        var hStep = 300 / (data.length - 1);
        var busLines = [].concat.apply([], data.map(function (busLine, idx) {
            var prevPt;
            var points = [];
            for (var i = 0; i < busLine.length; i += 2) {
                var pt = [busLine[i], busLine[i + 1]];
                if (i > 0) {
                    pt = [
                        prevPt[0] + pt[0],
                        prevPt[1] + pt[1]
                    ];
                }
                prevPt = pt;

                points.push([pt[0] / 1e4, pt[1] / 1e4]);
            }
            return {
                coords: points,
                lineStyle: {
                    normal: {
                        color: echarts.color.modifyHSL('#5A94DF', Math.round(hStep * idx))
                    }
                }
            };
        }));
        option = {
            bmap: {
                center: [116.46, 39.92],
                zoom: 10,
                roam: true,
                mapStyle: {
                  'styleJson': [
                    {
                      'featureType': 'water',
                      'elementType': 'all',
                      'stylers': {
                        'color': '#031628'
                      }
                    },
                    {
                      'featureType': 'land',
                      'elementType': 'geometry',
                      'stylers': {
                        'color': '#000102'
                      }
                    },
                    {
                      'featureType': 'highway',
                      'elementType': 'all',
                      'stylers': {
                        'visibility': 'off'
                      }
                    },
                    {
                      'featureType': 'arterial',
                      'elementType': 'geometry.fill',
                      'stylers': {
                        'color': '#000000'
                      }
                    },
                    {
                      'featureType': 'arterial',
                      'elementType': 'geometry.stroke',
                      'stylers': {
                        'color': '#0b3d51'
                      }
                    },
                    {
                      'featureType': 'local',
                      'elementType': 'geometry',
                      'stylers': {
                        'color': '#000000'
                      }
                    },
                    {
                      'featureType': 'railway',
                      'elementType': 'geometry.fill',
                      'stylers': {
                        'color': '#000000'
                      }
                    },
                    {
                      'featureType': 'railway',
                      'elementType': 'geometry.stroke',
                      'stylers': {
                        'color': '#08304b'
                      }
                    },
                    {
                      'featureType': 'subway',
                      'elementType': 'geometry',
                      'stylers': {
                        'lightness': -70
                      }
                    },
                    {
                      'featureType': 'building',
                      'elementType': 'geometry.fill',
                      'stylers': {
                        'color': '#000000'
                      }
                    },
                    {
                      'featureType': 'all',
                      'elementType': 'labels.text.fill',
                      'stylers': {
                        'color': '#857f7f'
                      }
                    },
                    {
                      'featureType': 'all',
                      'elementType': 'labels.text.stroke',
                      'stylers': {
                        'color': '#000000'
                      }
                    },
                    {
                      'featureType': 'building',
                      'elementType': 'geometry',
                      'stylers': {
                        'color': '#022338'
                      }
                    },
                    {
                      'featureType': 'green',
                      'elementType': 'geometry',
                      'stylers': {
                        'color': '#062032'
                      }
                    },
                    {
                      'featureType': 'boundary',
                      'elementType': 'all',
                      'stylers': {
                        'color': '#465b6c'
                      }
                    },
                    {
                      'featureType': 'manmade',
                      'elementType': 'all',
                      'stylers': {
                        'color': '#022338'
                      }
                    },
                    {
                      'featureType': 'label',
                      'elementType': 'all',
                      'stylers': {
                        'visibility': 'off'
                      }
                    }
                  ]
                }
            },
            series: [{
                type: 'lines',
                coordinateSystem: 'bmap',
                polyline: true,
                data: busLines,
                silent: true,
                lineStyle: {
                    normal: {
                        // color: '#c23531',
                        // color: 'rgb(200, 35, 45)',
                        opacity: 0.2,
                        width: 1
                    }
                },
                progressiveThreshold: 500,
                progressive: 200
            }, {
                type: 'lines',
                coordinateSystem: 'bmap',
                polyline: true,
                data: busLines,
                lineStyle: {
                    normal: {
                        width: 0
                    }
                },
                effect: {
                    constantSpeed: 20,
                    show: true,
                    trailLength: 0.1,
                    symbolSize: 1.5
                },
                zlevel: 1
            }]
        };
    });
    chart.setOption(option);
}(echarts))

#### 其他信息 (Other comments)
<!-- 例如，截图或线上实例 (JSFiddle/JSBin/Codepen) (For example: Screenshot or Online demo) -->

[cmal]

@chm74 遇到同样的问题，请问您解决了没有？

[ahmadalibaloch]

This problem could also occur when the dom element is undefined or the options element passed to echarts init is undefined.

[liumin201802]

同问

[wreeecks]

This happens when setOption parameter is 'undefined'.

[KennyOnce]

how to fix the problem? @chm74