小编Dar*_*shn的帖子

我已经花了整整一天试图解决这个问题.我试着保持描述的简短.

• 使用Express-Mongo-React网络应用程序(MERN)
• 一切都在本地系统中正常运行.
• 我已经将本教程称为在AWS服务器(开发模式)中托管我的项目
• 我有'Client'文件夹,我保留所有反应代码.
• 在服务器上传代码后,我运行'npm install'

• 除了一个外,所有依赖项都已正确安装.

  即React-scripts

安装此react-scripts包后,我看到此错误消息

'发现1个高严重性漏洞 '

'npm audit' gives following summary


High         : Missing Origin Validation 
Package      : webpack-dev-server   
Patched in   :  >=3.1.11 
Dependency of: react-scripts

我重新启动了AWS实例,从头开始一切.什么都没有帮助.

可能是根本原因？

问题 我试图在活动中添加一个片段以及导航。但我看到以下错误

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.app.myapp/com.app.myapp.HomeMainActivity}: android.view.InflateException: Binary XML file line #12: Binary XML file line #12: Error inflating class fragment
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2927)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2988)
    at android.app.ActivityThread.-wrap14(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1631)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6682)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)
 Caused by: android.view.InflateException: Binary XML file line #12: Binary XML file line #12: Error inflating class fragment
 Caused by: android.view.InflateException: Binary XML file line #12: Error inflating class fragment
 Caused by: java.lang.IllegalArgumentException: Binary XML file line …