报错信息如下：

WAServiceMainContext.js?t=wechat&v=3.16.1:1 Error: MiniProgramError

module 'app.js' is not defined, require args is 'app.js'

    at X (WASubContext.js?t=wechat&v=3.16.1:1)

    at appservice.js:7

    at doWhenAllScriptLoaded (getmainpackage.js:1579)

    at getmainpackage.js:1641

    at getmainpackage.js:1690

    at c.loadScripts (index.js:1)(env: Windows,mp,2.02.2606082; lib: 3.16.1)