아래의 외부 라이브러리들 설치해야해용

npm install react-native-maps
npm install react-native-unimodules
npm install @react-native-community/geolocation
npm install expo-location npm install react-native-geocoding npm install @react-native-community/datetimepicker

<multislider 명령어>

npm install @ptomasroos/react-native-multi-slider

<채팅방 명령어>

npm install react-navigation react-navigation-stack react-native-gifted-chat

<picker 오류날 시>

npm install expo@latest
npx expo install --fix

(react-native-datetimepicker/datetimepicker#808 참고)