TypeError: Converting circular structure to JSON 启动测试echart时报错

分类：uni-app

17:54:01.144 Uncaught TypeError: Cannot read property 'evalJS' of null at __uniapppicker.html:9
17:54:05.936 TypeError: Converting circular structure to JSON at E:/package/HBuilderX/plugins/uniapp-cli/node_modules/@dcloudio/vue-cli-plugin-uni/packages/mpvue/index.js:638

启动测试echart时报错