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：

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

　修正：

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