在stackflow爬了很久還是遲遲找不到答案，基本確定是firebase這段程式碼的問題了，後台有enable auth服務，再麻煩大大了=> try { UserCredential userCredential = await FirebaseAuth.instance .signInWithEmailAndPassword(email: email, password: password); if (_formKey.currentState!.validate()) { Navigator.pushNamed(context, LoginSuccessScreen.routeName); } } catch (e) { print(e.toString()); } 報錯=> W/System ( 3494): Ignoring header X-Firebase-Locale because its value was null. I/flutter ( 3494): [firebase_auth/unknown] com.google.firebase.FirebaseException: An internal error has occurred. [ Cleartext HTTP traffic to 10.0.2.2 not permitted ]