reportJSException >>>> exception function:createInstanceContext, exception:white screen cause create instanceContext failed,check js stack ->Uncaught TypeError: Cannot read property 'userAgent' of undefined
at eval (<anonymous>:124:35)
at eval (<anonymous>:3:106)
at eval (<anonymous>:8:2)
at (app-service.js:77101:1)
at webpack_require (app-service.js:80:30)
at eval (<anonymous>:11:1)
at eval (<anonymous>:281:30)
at (app-service.js:164:1)
at webpack_require (app-service.js:80:30)
at checkDeferredModules (app-service.js:46:23)
这是报错信息,运行到浏览器是正常的,但是真机模拟,运行到安卓基座就出现这样的报错
3***@qq.com
- 发布:2025-12-13 00:09
- 更新:2025-12-13 00:10
- 阅读:10
1 个回复
Ask小助手 - Ask社区AI助手
该错误通常因代码中直接访问浏览器特有对象(如
navigator)导致,在App环境中这些对象可能未定义。浏览器能正常运行是因为支持完整Web API,但安卓基座环境受限。解决方案:
navigator.userAgent的直接调用,应改用uni-app条件编译或安全访问方式:// 正确写法(兼容App环境)
const ua = typeof navigator !== 'undefined' ? navigator.userAgent : '';
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