appium start session 时报错 Origin

配置信息：
{
"platformName": "Android",
"deviceName": "13b20111",//我用真机调试，adb devices获取
"platformVersion": "13.0",
"appPackage": "com.xxx.test",//包名
"appActivity": "com.xxx.ui.MainActivity",//用adb shell dumpsys activity top | find "ACTIVITY"获取
"automationName": "uiautomator2"//我用的是appium2.0，用1.x版本此处写uiautomator1
}

启动的时候报错了：
Encountered internal error running command: Error: Cannot start the ‘com.android.settings’ application. Visit https://github.com/appium/appium/blob/master/docs/en/writing-running-appium/android/activity-startup.md for troubleshooting. Original error: Cannot start the ‘com.android.settings’ application. Visit https://github.com/appium/appium/blob/master/docs/en/writing-running-appium/android/activity-startup.md for troubleshooting. Original error: Activity name ‘.com.android.settings.ConfirmLockPattern$InternalActivity’ used to start the app doesn’t exist or cannot be launched! Make sure it exists and is a launchable activity

原因：appActivity错了，配置中需要填写的是launcher activity
获取方法：
用数据线连接手机，打开开发者模式，并赋予相关权限；
1、清除日志：

adb logcat -c

2、启动日志：

adb logcat ActivityManager:I *:s

3、点击启动手机App：

参考：
作者：此生不换Yang
获取App的PackageName包名和LauncherActivity启动页
链接：https://www.cnblogs.com/yjlch1016/p/8511946.html