使用uniappx开发的鸿蒙应用，上传后，云测试后没有通过，主要是崩溃，日志片段如下

我的疑问是，为什么会有 webview 的错误？？ 不是转原生了吗。

================================================================

Generated by HiviewDFX@OpenHarmony
================================================================
Device info:HUAWEI Mate 60 Pro
Build info:ALN-AL00 5.1.0.150(SP10C00E128R4P1)
Fingerprint:bfb5faf53cb56f64109cdeadf3be2a85f084bd258a0ce31476ea909a36185363
Module name:harmony_ai.lingj.com
Version:1.0.0
VersionCode:100
PreInstalled:No
Foreground:Yes
Pid:10631
Uid:20020033
Reason:TypeError
Error name:TypeError
Error message:Cannot read property close of null
Stacktrace:
Cannot get SourceMap info, dump raw stack:
at closeWebview (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:13217:1)
at backPage (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:14764:5)
at back (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:14786:3)
at anonymous (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:14734:7)
at anonymous (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:12434:12)
at invokeApi (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:12290:1)
at anonymous (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:12308:39)
at backbuttonListener (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:12560:7)
at anonymous (entry|@dcloudio/uni-runtime-harmony|1.0.0|libs/uni-app-x-framework-dev.js:13946:5)
at anonymous (entry|@dcloudio/uni-runtime-harmony|1.0.0|UniNativeApp.ts:196:17)
at emit (entry|tiny-emitter|2.1.0|index.js:36:20)
at anonymous (entry|@dcloudio/uni-runtime-harmony|1.0.0|components/Page.ts:153:39)