报错如下：
On app route: pages/main/index/index
WAService.js:3 jsEnginScriptError
Cannot read property 'webviewId' of undefined
TypeError: Cannot read property 'webviewId' of undefined
at T (http://743331108.appservice.open.weixin.qq.com/WAService.js:6:25399)
at O (http://743331108.appservice.open.weixin.qq.com/WAService.js:6:26026)
at . (http://743331108.appservice.open.weixin.qq.com/WAService.js:6:27667)
at http://743331108.appservice.open.weixin.qq.com/WAService.js:6:31814
at http://743331108.appservice.open.weixin.qq.com/WAService.js:4:12978
at Array.forEach (native)
at . (http://743331108.appservice.open.weixin.qq.com/WAService.js:4:12958)
at http://743331108.appservice.open.weixin.qq.com/WAService.js:4:21689
at n. (http://743331108.appservice.open.weixin.qq.com/asdebug.js:1:11979)
at n.emit (http://743331108.appservice.open.weixin.qq.com/asdebug.js:1:8437)errorReport @ WAService.js:3(anonymous function) @ WAService.js:3t.errorReport @ WAService.js:7(anonymous function) @ WAService.js:6(anonymous function) @ WAService.js:4(anonymous function) @ WAService.js:4(anonymous function) @ WAService.js:4(anonymous function) @ asdebug.js:1n.emit @ asdebug.js:1r @ asdebug.js:1v @ asdebug.js:1(anonymous function) @ asdebug.js:1







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微信小程序开发者回答：

林***：
请提供下更多信息



做什么操作代码是怎么样的会有这个报错
秋***：
App的onLaunch里面能调用wx.switchTab吗？原先可以，一升级后不行了。
Android体验版显示“资源包过期“，这要如何解决？--微信小程序开发教程 ...
C***：
App onLaunch 里边不能立即调用 wx.switchTab
秋***：
那如何在开始的时候，动态的选择需要加载的页面呢？

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