为什么我在appium desktop里面设置了需要的连接参数，但是点击Start Session不成功呢。
[Appium] Creating new AndroidDriver (v4.1.1) session
[Appium] Capabilities:
[Appium] appActivity : .view.WelcomeActivityAlias
[Appium] appPackage : com.xueqiu.android
[Appium] deviceName: 192.168.25.102:5555
[Appium] platformName: Android
[Appium] newCommandTimeout: 0
[Appium] connectHardwareKeyboard: true
[BaseDriver] Creating session with MJSONWP desired capabilities: {"appActivity ":".view.Welc...
[BaseDriver] The following capabilities were provided, but are not recognized by appium: appActivity , appPackage , connectHardwareKeyboard.
[AndroidDriver] Error: The desired capabilities must include either an app, appPackage or browserName
[AndroidDriver] at Object.wrappedLogger.errorAndThrow (C:\Program Files (x86)\Appium\resources\app\node_modules\appium\node_modules\appium-support\lib\logging.js:78:13)

老师，这个问题什么意思？
An unknown server-side error occurred while processing the command. Original error: Error executing adbExec. Original error: 'Command 'C:\\Android\\android-sdk\\android-sdk-windows\\platform-tools\\adb.exe -P 5037 -s 775c8fb6 push 'C:\\Program Files\\Appium\\resources\\app\\node_modules\\appium\\node_modules\\io.appium.settings\\apks\\settings_apk-debug.apk' /data/local/tmp/appium_cache/3d97225b036c28750562ef8962defee6b1af19a4.apk' exited with code 1'; Stderr: ''; Code: '1'

老师总是遇到 “An unknown server-side error occurred while processing the command. Original error: Could not find 'adb' in PATH. Please set the ANDROID_HOME or ANDROID_SDK_ROOT environment variables to the corect Android SDK root directory path.” error。 而且我配置了下边的路径在.bash_profile 文件中。请老师支招！谢谢！
’export ANDROID_HOME=/Users/rzguo/Library/Android/sdk
export PATH=${PATH}:$ANDROID_HOME/platform-tools
export PATH=${PATH}:$ANDROID_HOME/tools‘

老师，真机测试时，我用appium-desktop创建session报如下错误：
Error: ENOTFOUND

填写内容如下：
{
  "platformName": "Android",
  "deviceName": "3HX5T16C17009002",
  "appPackage": "com.tuniu.app.ui",
  "appActivity": ".homepage.LaunchActivity",
  "platformVersion": "9"
}

是什么原因呢

老师，我用appium创建session报如下错：Error
An unknown server-side error occurred while processing the command. Original error: Cannot read property 'toLowerCase' of undefined


这是填写内容：
{
  "platformName": "Andriod",
  "platformVersion": "MIUI 10.0",
  "deviceName": "Redmi 6 Pro",
  "appPackage": "com.xueqiu.android",
  "appActivity": ".view.WelcomeActivityAlias",
  "unicodeKeyboard": "True",
  "resetKeyboard": "True"
}

老师，为什么我在session添加到devicename的时候就报错呢。这个怎么解决呢
An unknown server-side error occurred while processing the command. Original error: Error executing adbExec. Original error: 'Command 'D:\\AndroidProject\\AndroidSDK\\platform-tools\\adb.exe -P 5037 -s 30b14c3d0205 shell pm install -g /data/local/tmp/appium_cache/3d97225b036c28750562ef8962defee6b1af19a4.apk' exited with code 1'; Stderr: 'Error: java.lang.SecurityException: You need the android.permission.INSTALL_GRANT_RUNTIME_PERMISSIONS permission to use the PackageManager.INSTALL_GRANT_RUNTIME_PERMISSIONS flag'; Code: '1'

老师，连接模拟器没有问题，但是连接真机的时候报错，请问这个要怎么解决？
An unknown server-side error occurred while processing the command. Original error: Error executing adbExec. Original error: 'Command 'D:\\Android\\android-sdk\\platform-tools\\adb.exe -P 5037 -s 5dfbdbf3 shell settings delete global hidden_api_policy_pre_p_apps' exited with code 255'; Stderr: 'Security exception: Permission denial: writing to settings requires:android.permission.WRITE_SECURE_SETTINGS
 
 java.lang.SecurityException: Permission denial: writing to settings requires:android.permission.WRITE_SECURE_SETTINGS
 at com.android.providers.settings.SettingsProvider.enforceWritePermission(SettingsProvider.java:2041)
 at com.android.providers.settings.SettingsProvider.mutateGlobalSetting(SettingsProvider.java:1104)
 at com.android.providers.settings.SettingsProvider.deleteGlobalSetting(SettingsProvider.java:1087)
 at com.android.providers.settings.SettingsProvider.delete(SettingsProvider.java:669)
 at android.content.ContentProvider$Transport.delete(ContentProvider.java:404)
 at com.android.providers.settings.SettingsService$MyShellCommand.deleteForUser(SettingsService.java:406)
 at com.android.providers.settings.SettingsService$MyShellCommand.onCommand(SettingsService.java:289)
 at android.os.ShellCommand.exec(ShellCommand.java:103)
 at com.android.providers.settings.SettingsService.onShellCommand(SettingsService.java:51)
 at android.os.Binder.shellCommand(Binder.java:634)
 at android.os.Binder.onTransact(Binder.java:532)
 at android.os.Binder.execTransact(Binder.java:731)'; Code: '255'