title: Flutter problem when i try to run my App through Chrome(web), i get this errors
body: <blockquote>
  <p>TypeError: Cannot read property 'app' of undefined
  at Object.app$ [as app] (http://localhost:53187/packages/firebase_core_web/src/interop/core.dart.lib.js:31:101)
  at new cloud_firestore_web.FirebaseFirestoreWeb.new (http://localhost:53187/packages/cloud_firestore_web/src/write_batch_web.dart.lib.js:773:64)
  at Function.registerWith (http://localhost:53187/packages/cloud_firestore_web/src/write_batch_web.dart.lib.js:692:73)
  at Object.registerPlugins (http://localhost:53187/packages/first_flutter_app/generated_plugin_registrant.dart.lib.js:16:46)
  at main (http://localhost:53187/web_entrypoint.dart.lib.js:31:35)
  at main.next ()
  at runBody (http://localhost:53187/dart_sdk.js:37422:34)
  at Object._async [as async] (http://localhost:53187/dart_sdk.js:37453:7)
  at main$ (http://localhost:53187/web_entrypoint.dart.lib.js:30:18)
  at http://localhost:53187/main_module.bootstrap.js:19:10
  at Array.forEach ()
  at window.$dartRunMain (http://localhost:53187/main_module.bootstrap.js:18:32)
  at :1:8
  at Object.runMain (http://localhost:53187/dwds/src/injected/client.js:8825:21)
  at http://localhost:53187/dwds/src/injected/client.js:22713:19
  at _wrapJsFunctionForAsync_closure.$protected (http://localhost:53187/dwds/src/injected/client.js:3851:15)
  at _wrapJsFunctionForAsync_closure.call$2 (http://localhost:53187/dwds/src/injected/client.js:11063:12)
  at Object._asyncStartSync (http://localhost:53187/dwds/src/injected/client.js:3815:20)
  at main__closure1.$call$body$main__closure (http://localhost:53187/dwds/src/injected/client.js:22725:16)
  at main__closure1.call$1 (http://localhost:53187/dwds/src/injected/client.js:22652:19)
  at StaticClosure._rootRunUnary [as call$2$5] (http://localhost:53187/dwds/src/injected/client.js:4185:16)
  at _CustomZone.runUnary$2$2 (http://localhost:53187/dwds/src/injected/client.js:12436:39)
  at _CustomZone.runUnaryGuarded$1$2 (http://localhost:53187/dwds/src/injected/client.js:12383:14)
  at _ControllerSubscription._sendData$1 (http://localhost:53187/dwds/src/injected/client.js:11959:19)
  at _DelayedData.perform$1 (http://localhost:53187/dwds/src/injected/client.js:12148:59)
  at _PendingEvents_schedule_closure.call$0 (http://localhost:53187/dwds/src/injected/client.js:12197:14)
  at Object._microtaskLoop (http://localhost:53187/dwds/src/injected/client.js:4023:24)
  at StaticClosure._startMicrotaskLoop (http://localhost:53187/dwds/src/injected/client.js:4029:11)
  at _AsyncRun__initializeScheduleImmediate_internalCallback.call$1 (http://localhost:53187/dwds/src/injected/client.js:10932:9)
  at invokeClosure (http://localhost:53187/dwds/src/injected/client.js:1259:26)
  at MutationObserver. (http://localhost:53187/dwds/src/injected/client.js:1278:18)</p>
  </blockquote>
  <p>And this is my pubspec.yaml file:</p>
  <p><a href="https://i.stack.imgur.com/3A51X.png" rel="nofollow noreferrer">pubspec.yaml</a></p>