Android Studio: 4.0 Dart: 193.7361 Flutter: 46.0.2 Add this to your package's pubspec.yaml file dependencies: firebase_core: ^0.4.5 Android Plugin project :firebase_core_web not found. Please update settings.gradle. add code in settings.gradle def flutterProjectRoot = rootProject.projectDir.parentFile.toPath() def plugins = new Properties() def pluginsFile = new File(flutterProjectRoot.toFile(),..