详细问题描述
（DCloud产品不会有明显的bug，所以你遇到的问题大都是在特定环境下才能重现的问题，请仔细描述你的环境和重现方式，否则DCloud很难排查解决你的问题）
[内容]
在splash页面点击android手机的返回键，报错
重现步骤
[步骤]
正成运行到手机
在splash启动页面点击返回按键
[结果]
appServiceSDKScriptError
17:01:43.748 undefined is not an object (evaluating 'c.onBackPress'); at uni.navigateBack
17:01:43.768 e
17:01:43.788 qn
17:01:43.829 invoke
17:01:43.849 invoke
17:01:43.869 X
17:01:43.910 Wc
17:01:44.010 j
17:01:44.051 onCallback
17:01:44.091 callbackFromNative
17:01:44.112 eval code
17:01:44.132 eval@[native code]
17:01:44.172 consume
17:01:44.193 map@[native code]
17:01:44.477 [Object] {"phone_app_version":"V1.00"} at pages\afterSplash\afterSplash.vue:188
17:01:51.733 01:49.884 7964 7986 E console : [ERROR] reportJSException >>>> exception function:createInstanceContext, exception:JavaScript execute error!TypeError: undefined is not an object (evaluating 'this.callbacks[e]')
[期望]
虽说没有什么影响，但是报错不应该
[如果语言难以表述清晰，拍一个视频或截图，有图有真相]
IDE运行环境说明
HBuilderX
2.2.2.20190816
2 个回复
DCloud_UNI_GSQ
bug 确认，已加分
w***@163.com
我也遇到类似问题，回退键无法退出应用，错误如下：
16:33:37.935 appServiceSDKScriptError
16:33:37.956 undefined is not an object (evaluating 'c.onBackPress'); at uni.navigateBack
16:33:37.977 e@(global function):6:70091
16:33:37.997 zn@(global function):6:82623
16:33:38.018 (global function):7:844
16:33:38.039 invoke@(global function):7:889
16:33:38.060 invoke@(global function):7:104451
16:33:38.081 X@(global function):7:162045
16:33:38.102 (global function):7:169498
16:33:38.123 Wc@(global function):7:321379
16:33:38.144 (global function):7:209890
16:33:38.165 (global function):7:417763
16:33:38.186 (global function):7:417805
16:33:38.209 (global function):7:173431
16:33:38.228 j@(global function):6:5969
16:33:38.249 weex service:3:102219
16:33:38.270 onCallback@weex service:3:104686
16:33:38.291 weex service:3:16376
16:33:38.311 callbackFromNative@weex service:3:15972
16:33:38.332 eval code
16:33:38.352 eval@[native code]
16:33:38.372 weex service:3:15025
16:33:38.393 consume@(weex framework):1:1263
16:33:38.414 map@[native code]
16:33:38.435 (weex framework):1:171883