There are steps you need to do to run.
1, install CocoaPod See this.
https://guides.cocoapods.org/using/getting-started.html
2,Press 'pod install' in ios directory.
3,Resister your email to firebase at Authentication.
https://console.firebase.google.com/project/mediplus-6783a/authentication/users
4,npm install
5,react-native run-ios
1, You need to check if the application run on your PC correctly, which means you need have same enviroment with team for developing. If you add your codes without doing this, this code does not work in other people's PC Don't ignore this point.
2,you could get this error.
Print: Entry, ":CFBundleIdentifier", Does Not
in that case, type these command in terminal at the project directory.
・rm -rf ~/.rncache
・rm -rf node_modules
・yarn or npm install