'Gradle sync failed' on android studio after ejecting from React Native

Question

I created an app with React Native expo (expo init my-project)

However, when I ran npm run eject, there are errors when I open it out on Android Studio.

Gradle sync failed: Java or Kotlin file /Users/rachelchng/Desktop/rn/expo/decisionFatigue/android/app/src/main/java/my-project/MainApplication.java does not include package declaration Consult IDE log for more details (Help | Show Log) (9 s 805 ms)

please advise, thanks!

Answer 1

You can't have - symbol for your package name. Try changing it from my-project into something like myproject or myProject .

You can also try to re-eject your expo project again and set the project name to something like this com.domain.myproject