Echarts地图报错：Error: Invalid geoJson format Cannot read property ‘length‘ of undefined

展示浙江台州的区县时发现页面报错，找了一圈发现文件里不一样的地方就是玉环市JSON里面有一个"type": “GeometryCollection”
修改node_modules\echarts\lib\coord\geo\parseGeoJson.js代码

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */


/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * Parse and decode geo json
 */
import * as zrUtil from 'zrender/lib/core/util';
import Region from './Region';

function decode(json) {
    if (!json.UTF8Encoding) {
        return json;
    }

    var jsonCompressed = json;
    var encodeScale = jsonCompressed.UTF8Scale;

    if (encodeScale == null) {
        encodeScale = 1024;
    }

    var features = jsonCompressed.features;

    for (var f = 0; f < features.length; f++) {
        var feature = features[f];
        var geometry = feature.geometry;

        if (geometry.type === 'Polygon') {
            var coordinates = geometry.coordinates;

            for (var c = 0; c < coordinates.length; c++) {
                coordinates[c] = decodePolygon(coordinates[c], geometry.encodeOffsets[c], encodeScale);
            }
        } else if (geometry.type === 'MultiPolygon') {
            var coordinates = geometry.coordinates;

            for (var c = 0; c < coordinates.length; c++) {
                var coordinate = coordinates[c];

                for (var c2 = 0; c2 < coordinate.length; c2++) {
                    coordinate[c2] = decodePolygon(coordinate[c2], geometry.encodeOffsets[c][c2], encodeScale);
                }
            }
        }
    } // Has been decoded


    jsonCompressed.UTF8Encoding = false;
    return jsonCompressed;
}

function decodePolygon(coordinate, encodeOffsets, encodeScale) {
    var result = [];
    var prevX = encodeOffsets[0];
    var prevY = encodeOffsets[1];

    for (var i = 0; i < coordinate.length; i += 2) {
        var x = coordinate.charCodeAt(i) - 64;
        var y = coordinate.charCodeAt(i + 1) - 64; // ZigZag decoding

        x = x >> 1 ^ -(x & 1);
        y = y >> 1 ^ -(y & 1); // Delta deocding

        x += prevX;
        y += prevY;
        prevX = x;
        prevY = y; // Dequantize

        result.push([x / encodeScale, y / encodeScale]);
    }

    return result;
}

export default function parseGeoJSON(geoJson, nameProperty) {
    decode(geoJson);
    return zrUtil.map(
        zrUtil.filter(geoJson.features, function (featureObj) {
            if (featureObj.geometry.geometries) {
                let geometry = featureObj.geometry.geometries.map(i => {
                    return i.coordinates;
                });
                let { type, properties} = featureObj;
                return {
                    type,
                    properties,
                    geometry
                };
            }
            // Output of mapshaper may have geometry null
            return (
                featureObj.geometry &&
                featureObj.properties &&
                featureObj.geometry.coordinates &&
                featureObj.geometry.coordinates.length > 0
            );
        }),
        function (featureObj) {
            var properties = featureObj.properties;
            var geo = featureObj.geometry;
            var coordinates = geo.coordinates;
            var geometries = [];

            if (geo.type === "GeometryCollection") {
                let geometry = {
                    type: "Polygon"
                };
                let coordinatesArr = featureObj.geometry.geometries.map(i => {
                    return i.coordinates;
                });
                geometry.coordinates = coordinatesArr;
                console.log(coordinatesArr, "coordinatesArr");
                coordinatesArr.forEach(i => {
                    geometries.push({
                        type: "polygon",
                        // According to the GeoJSON specification.
                        // First must be exterior, and the rest are all interior(holes).
                        exterior: i[0],
                        interiors: i.slice(1)
                    });
                });
            }
            if (geo.type === "Polygon") {
                console.log("coordinatesPolygon", coordinates);
                geometries.push({
                    type: "polygon",
                    // According to the GeoJSON specification.
                    // First must be exterior, and the rest are all interior(holes).
                    exterior: coordinates[0],
                    interiors: coordinates.slice(1)
                });
            }

            if (geo.type === "MultiPolygon") {
                zrUtil.each(coordinates, function (item) {
                    if (item[0]) {
                        geometries.push({
                            type: "polygon",
                            exterior: item[0],
                            interiors: item.slice(1)
                        });
                    }
                });
            }
            console.log(
                properties[nameProperty || "name"],
                geometries,
                properties.cp,
                "asdfasdfasdf"
            );
            var region = new Region(
                properties[nameProperty || "name"],
                geometries,
                properties.cp
            );
            region.properties = properties;
            return region;
        })
}

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