【Appium踩坑】小米手机，启动报错：exited with code 255 writing to settings requires:android.permission.WRITE_SECUR

设备：小米9 + Android 9.0
工具： Appium desktop 1.15.1

相关解答：github issue

1、解决->开启 USB调试（安全设置）

(1) 手机-插入 sim卡
(2) 设置 - 更多设置 - 开发者选项 - USB调试（安全设置）- 开启

2、详细报错信息

An unknown server-side error occurred while processing the command. Original error: Error executing adbExec. Original error: 'Command '/Users/xx/Library/Android/sdk/platform-tools/adb -P 5037 -s 77c9ea2f 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:1815) 
at com.android.providers.settings.SettingsProvider.mutateGlobalSetting(SettingsProvider.java:1023) 
at com.android.providers.settings.SettingsProvider.deleteGlobalSetting(SettingsProvider.java:1006) 
at com.android.providers.settings.SettingsProvider.delete(SettingsProvider.java:592) 
at android.content.ContentProvider$Transport.delete(ContentProvider.java:343) 
at com.android.providers.settings.SettingsService$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:733)'; Code: '255'

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