nativescript-dev-appium e2e test failed

I'm try to e2e testing with nativescript-dev-appium, but failed. I don't know what's wrong. I'm coding with this link https://github.com/NativeScript/ns-dev-days-appium-plugin

and this is android28

"android28": { "platformName": "Android", "platformVersion": "28", "deviceName": "Emulator-Api28-Google", "avd": "Emulator-Api28-Google", "lt": 60000, "newCommandTimeout": 720, "noReset": false, "fullReset": false, "app": "" }

$ npm run e2e -- --runType android28

@ e2e /appium-demo node ./node_modules/nativescript-dev-appium/check-dev-deps.js && tsc -p e2e && mocha --opts ./e2e/config/mocha.opts "--runType" "android28"

Parsed args:   {"port":4723,"projectDir":"/appium-demo","projectBinary":"/appium-demo/node_modules/.bin","pluginRoot":"/appium-demo/node_modules/nativescript-dev-appium","pluginBinary":"/appium-demo/node_modules/nativescript-dev-appium/node_modules/.bin","wdaLocalPort":8410,"testFolder":"e2e","runType":"android28","appiumCapsLocation":"/appium-demo/e2e/config/appium.capabilities.json","verbose":false,"cleanApp":false,"path":"/appium-demo","capabilitiesName":"appium.capabilities.json","driverConfig":{"host":"localhost","port":4723},"logImageTypes":[]}

/appium-demo/e2e/config/appium.capabilities.json Capabilities found at: /appium-demo/e2e/config/appium.capabilities.json Automation name set to: UIAutomator2 To change automation name, you need to set it in appium capabilities! Available applications: ["platforms/android/app/build/outputs/apk/debug/app-debug.apk"] Pick first application: "platforms/android/app/build/outputs/apk/debug/app-debug.apk" Application full path: /appium-demo/platforms/android/app/build/outputs/apk/debug/app-debug.apk 1) "before all" hook: start server 2) "after all" hook: stop server

0 passing (109ms) 2 failing

1) "before all" hook: start server: TypeError: Cannot read property 'sdk' of undefined at fs_1.readFileSync.split.forEach.line (node_modules/mobile-devices-controller/lib/android-controller.js:678:44) at Array.forEach () at fs_1.readdirSync.filter.forEach.f (node_modules/mobile-devices-controller/lib/android-controller.js:671:18) at Array.forEach () at Function.parseEmulatorsAvds (node_modules/mobile-devices-controller/lib/android-controller.js:668:14) at Function. (node_modules/mobile-devices-controller/lib/android-controller.js:862:57) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/mobile-devices-controller/lib/android-controller.js:8:71 at new Promise () at __awaiter (node_modules/mobile-devices-controller/lib/android-controller.js:4:12) at Function.parseEmulators (node_modules/mobile-devices-controller/lib/android-controller.js:856:16) at Function. (node_modules/mobile-devices-controller/lib/android-controller.js:46:37) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/mobile-devices-controller/lib/android-controller.js:8:71 at new Promise () at __awaiter (node_modules/mobile-devices-controller/lib/android-controller.js:4:12) at Function.getAllDevices (node_modules/mobile-devices-controller/lib/android-controller.js:42:16) at Function. (node_modules/mobile-devices-controller/lib/device-controller.js:242:63) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/mobile-devices-controller/lib/device-controller.js:8:71 at new Promise () at __awaiter (node_modules/mobile-devices-controller/lib/device-controller.js:4:12) at Function.mapDevicesToArray (node_modules/mobile-devices-controller/lib/device-controller.js:235:16) at Function. (node_modules/mobile-devices-controller/lib/device-controller.js:24:52) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/mobile-devices-controller/lib/device-controller.js:8:71 at new Promise () at __awaiter (node_modules/mobile-devices-controller/lib/device-controller.js:4:12) at Function.getDevices (node_modules/mobile-devices-controller/lib/device-controller.js:22:16) at DeviceManager. (node_modules/nativescript-dev-appium/lib/device-manager.js:41:86) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/nativescript-dev-appium/lib/device-manager.js:7:71 at new Promise () at __awaiter (node_modules/nativescript-dev-appium/lib/device-manager.js:3:12) at DeviceManager.startDevice (node_modules/nativescript-dev-appium/lib/device-manager.js:18:16) at Object. (node_modules/nativescript-dev-appium/lib/utils.js:491:44) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/nativescript-dev-appium/lib/utils.js:7:71 at new Promise () at __awaiter (node_modules/nativescript-dev-appium/lib/utils.js:3:12) at Object.exports.prepareDevice (node_modules/nativescript-dev-appium/lib/utils.js:489:50) at AppiumServer. (node_modules/nativescript-dev-appium/lib/appium-server.js:165:40) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/nativescript-dev-appium/lib/appium-server.js:7:71 at new Promise () at __awaiter (node_modules/nativescript-dev-appium/lib/appium-server.js:3:12) at AppiumServer.prepDevice (node_modules/nativescript-dev-appium/lib/appium-server.js:164:16) at AppiumServer. (node_modules/nativescript-dev-appium/lib/appium-server.js:55:28) at Generator.next () at fulfilled (node_modules/nativescript-dev-appium/lib/appium-server.js:4:58) at process._tickCallback (internal/process/next_tick.js:68:7)

2) "after all" hook: stop server: TypeError: Cannot read property 'platform' of undefined at Function.getApplicationId (node_modules/mobile-devices-controller/lib/device-controller.js:96:20) at Function. (node_modules/mobile-devices-controller/lib/device-controller.js:217:47) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/mobile-devices-controller/lib/device-controller.js:8:71 at new Promise () at __awaiter (node_modules/mobile-devices-controller/lib/device-controller.js:4:12) at Function.uninstallApplication (node_modules/mobile-devices-controller/lib/device-controller.js:216:16) at Object. (node_modules/nativescript-dev-appium/index.js:92:64) at Generator.next () at /home/mai/code/mobile_app/appium-demo/node_modules/nativescript-dev-appium/index.js:7:71 at new Promise () at __awaiter (node_modules/nativescript-dev-appium/index.js:3:12) at Object.stopServer (node_modules/nativescript-dev-appium/index.js:84:12) at Context. (e2e/setup.js:33:41) at Generator.next () at /home/mai/code/mobile_app/appium-demo/e2e/setup.js:7:71 at new Promise () at __awaiter (e2e/setup.js:3:12) at Context. (e2e/setup.js:32:12) at process.topLevelDomainCallback (domain.js:126:23)