react native 윈도우 실행 오류

이번에 처음으로 앱 개발 공부를 해보려고 react native를 열심히 실행해 봤습니다.

중간에 계속 에러가 나고 막히는 부분이 있었지만 겨우 마지막에 npm run android부분까지 왔습니다. 그런데 실행을 할려고 하면 계속

C:\Users\aladi\MyApp\NewApp>npx react-native run-android
info Starting JS server...

info 💡 Tip: Make sure that you have set up your development environment correctly, by running react-native doctor. To read more about doctor command visit: https://github.com/react-native-community/cli/blob/main/packages/cli-doctor/README.md#doctor


FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* Where:
Build file 'C:\Users\aladi\MyApp\NewApp\android\app\build.gradle' line: 2

* What went wrong:
A problem occurred evaluating project ':app'.
> Could not find implementation class 'com.facebook.react.ReactPlugin' for plugin 'com.facebook.react' specified in jar:file:/C:/Users/aladi/.gradle/caches/jars-9/e787d8a8f912d81d210d8e27e6fa5ed3/react-native-gradle-plugin.jar!/META-INF/gradle-plugins/com.facebook.react.properties.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
==============================================================================

2: Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring project ':app'.
> compileSdkVersion is not specified. Please add it to build.gradle

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
==============================================================================

* Get more help at https://help.gradle.org

BUILD FAILED in 12s
error Failed to install the app. Command failed with exit code 1: gradlew.bat tasks FAILURE: Build completed with 2 failures. 1: Task failed with an exception. ----------- * Where: Build file 'C:\Users\aladi\MyApp\NewApp\android\app\build.gradle' line: 2 * What went wrong: A problem occurred evaluating project ':app'. > Could not find implementation class 'com.facebook.react.ReactPlugin' for plugin 'com.facebook.react' specified in jar:file:/C:/Users/aladi/.gradle/caches/jars-9/e787d8a8f912d81d210d8e27e6fa5ed3/react-native-gradle-plugin.jar!/META-INF/gradle-plugins/com.facebook.react.properties. * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. ============================================================================== 2: Task failed with an exception. ----------- * What went wrong: A problem occurred configuring project ':app'. > compileSdkVersion is not specified. Please add it to build.gradle * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. ============================================================================== * Get more help at https://help.gradle.org BUILD FAILED in 12s
> Task :gradle-plugin:compileKotlin UP-TO-DATE > Task :gradle-plugin:compileJava NO-SOURCE > Task :gradle-plugin:pluginDescriptors UP-TO-DATE > Task :gradle-plugin:processResources UP-TO-DATE > Task :gradle-plugin:classes UP-TO-DATE > Task :gradle-plugin:jar UP-TO-DATE > Task :gradle-plugin:inspectClassesForKotlinIC UP-TO-DATE 5 actionable tasks: 5 up-to-date.

이런 에러가 뜨더라구요

정말 이쪽부분은 하나도 모르는 코린이라 아무리 구글링해보고 혼자 머리 굴려봐도

해결이 되지 않습니다.. 에뮬레이터까지는 뜨는데 react native화면은 뜨지 않고 저렇게 에러 메세지만 나옵니다. 어떻게 해야될까요.. 제발 도와주세요ㅜ

npx react-native doctor

npm install