错误：<circle>属性cy：预期长度，＆＃34; NaN＆＃34;在react-jvectormap中

Question

我正在创建一个单页应用程序，其中我使用了react-jvectormap来显示我站点的在线访问者。一切正常，但当我尝试导航到另一页时，它在控制台中出错。这是我的代码，可以更好地了解你们。

/**
 * Online Visitor
 */
import React from 'react';
import { VectorMap } from 'react-jvectormap';

// intl messages
import IntlMessages from 'Util/IntlMessages';

// chart config
import ChartConfig from 'Constants/chart-config';

const OnlineVisitorsWidget = () => (
   <div className="card">
      <VectorMap map={'world_mill'}
         backgroundColor={ChartConfig.color.white}
         containerStyle={{
            width: '100%',
            height: '100%'
         }}
         regionStyle={{
            initial: {
               fill: ChartConfig.color.default
            }
         }}
         markerStyle={{
            initial: {
               fill: ChartConfig.color.info,
               stroke: ChartConfig.color.white
            }
         }}
         zoomButtons={false}
         zoomOnScroll={false}
         containerClassName="map"
         markers={[
            { latLng: [41.90, 12.45], name: 'Vatican City' },
            { latLng: [43.73, 7.41], name: 'Monaco' },
            { latLng: [-0.52, 166.93], name: 'Nauru' },
            { latLng: [-8.51, 179.21], name: 'Tuvalu' },
            { latLng: [43.93, 12.46], name: 'San Marino' },
            { latLng: [47.14, 9.52], name: 'Liechtenstein' },
            { latLng: [7.11, 171.06], name: 'Marshall Islands' },
            { latLng: [17.3, -62.73], name: 'Saint Kitts and Nevis' },
            { latLng: [3.2, 73.22], name: 'Maldives' },
            { latLng: [35.88, 14.5], name: 'Malta' },
            { latLng: [12.05, -61.75], name: 'Grenada' },
            { latLng: [13.16, -61.23], name: 'Saint Vincent and the Grenadines' },
            { latLng: [13.16, -59.55], name: 'Barbados' },
            { latLng: [17.11, -61.85], name: 'Antigua and Barbuda' },
            { latLng: [-4.61, 55.45], name: 'Seychelles' },
            { latLng: [7.35, 134.46], name: 'Palau' },
            { latLng: [42.5, 1.51], name: 'Andorra' },
            { latLng: [14.01, -60.98], name: 'Saint Lucia' },
            { latLng: [6.91, 158.18], name: 'Federated States of Micronesia' },
            { latLng: [1.3, 103.8], name: 'Singapore' },
            { latLng: [1.46, 173.03], name: 'Kiribati' },
            { latLng: [-21.13, -175.2], name: 'Tonga' },
            { latLng: [15.3, -61.38], name: 'Dominica' },
            { latLng: [-20.2, 57.5], name: 'Mauritius' },
            { latLng: [26.02, 50.55], name: 'Bahrain' },
            { latLng: [0.33, 6.73], name: 'São Tomé and Príncipe' }
         ]}
      />
   </div>
);

export default OnlineVisitorsWidget;

控制台