你好，小程序无法回调到app的问题，请开发者排查下配置是否正确https://developers.weixin.qq.com/doc/oplatform/Mobile_App/Access_Guide/Android.html

ios 和安卓 微笑小程序无法返回app 都报如下错，调试基础库 3.1.5 微信版本号 8.0.47

index.js:1 MiniProgramError

undefined is not a function (near '...wx.getLaunchAppInfo...')

TypeError: undefined is not a function (near '...wx.getLaunchAppInfo...')

_onThisTap@https://lib/WARenderContext.js:1:412074

p@https://lib/WAServiceMainContext.js:1:425725

call@https://lib/WAServiceMainContext.js:1:425616

callListener@https://lib/WAServiceMainContext.js:1:459945

@https://lib/WAServiceMainContext.js:1:461093

n@https://lib/WAServiceMainContext.js:1:460352

o@https://lib/WAServiceMainContext.js:1:460637

dispatch@https://lib/WAServiceMainContext.js:1:460958

v@https://lib/WARenderContext.js:1:843862

dispatchEvent@https://lib/WARenderContext.js:1:844408

@https://lib/WARenderContext.js:1:845273

je@https://lib/WAServiceMainContext.js:1:582959

handleTap@https://lib/WARenderContext.js:1:845241

handleTrackEnd@https://lib/WARenderContext.js:1:846565

dispatchTouchEvent@https://lib/WARenderContext.js:1:847257

@https://lib/WARenderContext.js:1:860324

@https://lib/WARenderContext.js:1:843480

global @ index.js:1

微信小程序

<button open-type="launchApp" app-parameter="wechat" binderror="launchAppError">打开APP</button>