uniapp 启动报 TypeError: Cannot read property 'MutationObserver' of undefined

uniapp-vue3-ts 编译启动小程序报 TypeError: Cannot read property 'MutationObserver' of undefined

错误源：

// main.ts 引入vconsole引起
import Vconsole from 'vconsole';
new Vconsole();

　修正：

// main.ts 引入vconsole引起
// #ifdef H5
import Vconsole from 'vconsole';
new Vconsole();
// #endif