林***：
提供的信息太少了


猜不出来为什么
Z***：
已经做了好几个微信小程序项目了，之前没有出现过。但之前的项目没有使用tabBar，这个项目使用了tabBar,app.js里登录后直接wx.switchTab首页,不知道是不是这个原因？在手机上不会出现，但是编辑器里一天会出现上百次，严重影响开发
新版微信小程序开发工具不能正常显示background里内嵌的svg
Z***：
@林超


jsEnginScriptError
Cannot read property 'webviewId' of undefined
TypeError: Cannot read property 'webviewId' of undefined
at T (http://81879637.appservice.open.weixin.qq.com/WAService.js:6:25399)
at O (http://81879637.appservice.open.weixin.qq.com/WAService.js:6:26026)
at . (http://81879637.appservice.open.weixin.qq.com/WAService.js:6:27667)
at http://81879637.appservice.open.weixin.qq.com/WAService.js:6:31814
at http://81879637.appservice.open.weixin.qq.com/WAService.js:4:12978
at Array.forEach (native)
at . (http://81879637.appservice.open.weixin.qq.com/WAService.js:4:12958)
at http://81879637.appservice.open.weixin.qq.com/WAService.js:4:21689
at n. (http://81879637.appservice.open.weixin.qq.com/asdebug.js:1:11979)
at n.emit (http://81879637.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