* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

파일생성 후 반복문 복사 후 붙여넣었는데 아래 오류 메세지가 출력되면서 엑스포 앱도 오류창이 나타나네요.

혹시 버전문제 아니면 설치하지 않은 프로그램이 있는걸까요??

작성한 코드 및 에러 메세지

Cannot connect to Metro.

Try the following to fix the issue:

- Ensure that Metro is running and available on the same network

- Ensure that your device/emulator is connected to your machine and has USB debugging enabled - run 'adb devices' 

to see a list of connected devices

- If you're on a physical device connected to the same machine, run 'adb reverse tcp:8081 tcp:8081' to forward requests from your device

- If your device is on the same Wi-Fi network, set 'Debug server host & port for device' in 'Dev settings' to your machine's IP address and the port of the local dev server - e.g. 10.0.1.1:8081

URL: 192.168.219.103:19000

Error: Software caused connection abort

at node_modules\expo\build\environment\react-native-logs.fx.js:null in warn

at node_modules\react-native\Libraries\Utilities\HMRClient.js:null in setHMRUnavailableReason

at node_modules\react-native\Libraries\Utilities\HMRClient.js:null in client.on$argument_1

at node_modules\metro-runtime\src\modules\vendor\eventemitter3.js:null in emit

at node_modules\metro-runtime\src\modules\HMRClient.js:null in _ws.onerror

at node_modules\event-target-shim\dist\event-target-shim.js:null in EventTarget.prototype.dispatchEvent

at node_modules\react-native\Libraries\WebSocket\WebSocket.js:null in _eventEmitter.addListener$argument_1     

at node_modules\react-native\Libraries\vendor\emitter\_EventEmitter.js:null in EventEmitter#emit

at node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:null in __callFunction

at node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:null in __guard$argument_0

at node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:null in __guard

at node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:null in callFunctionReturnFlushedQueue