* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

expo start하고 어플을 켜면 로딩화면 이후 이런 에러메세지가 뜨는데 뭐가 문제일까요??

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Started Metro Bundler

iOS Bundling complete 50ms

iOS Running app on iPhone

Invariant Violation: Your JavaScript code tried to access a native module that doesn't exist. 

If you're trying to use a module that is not supported in Expo Go, you need to create a development build of your app. See https://docs.expo.dev/development/introduction/ for more info., js engine: hermes

at node_modules/react-native/Libraries/Core/ExceptionsManager.js:102:17 in reportException

at node_modules/react-native/Libraries/Core/ExceptionsManager.js:148:19 in handleException

at node_modules/react-native/Libraries/Core/setUpErrorHandling.js:24:39 in handleError

at node_modules/expo/build/errors/ExpoErrorManager.js:25:19 in errorHandler

at node_modules/expo/build/errors/ExpoErrorManager.js:30:24 in <anonymous>

at node_modules/@react-native/polyfills/error-guard.js:49:36 in ErrorUtils.reportFatalError

at node_modules/metro-config/node_modules/metro-runtime/src/polyfills/require.js:225:40 in guardedLoadModule

at node_modules/metro-config/node_modules/metro-runtime/src/polyfills/require.js:127:23 in metroRequire

at http://172.30.1.39:19000/index.bundle?platform=ios&dev=true&hot=false&strict=false&minify=false:null in global

Invariant Violation: "main" has not been registered. This can happen if:

* Metro (the local dev server) is run from the wrong folder. Check if Metro is running, stop it and restart it in the current project.

* A module failed to load due to an error and `AppRegistry.registerComponent` wasn't called., js engine: hermes

at node_modules/react-native/Libraries/Core/ExceptionsManager.js:102:17 in reportException

at node_modules/react-native/Libraries/Core/ExceptionsManager.js:148:19 in handleException

- ... 7 more stack frames from framework internals