When I try to run the flutter app with firebase then I got below exception in the console
Connecting to VM Service at ws://127.0.0.1:62079/C02ZiuJk_8g=/ws
TypeError: Cannot read properties of undefined (reading 'app')
at Object.app$ [as app] (http://localhost:53062/packages/firebase_core_web/src/interop/core.dart.lib.js:31:101)
at new cloud_firestore_web.FirebaseFirestoreWeb.new (http://localhost:53062/packages/cloud_firestore_web/src/write_batch_web.dart.lib.js:833:64)
at Function.registerWith (http://localhost:53062/packages/cloud_firestore_web/src/write_batch_web.dart.lib.js:745:73)
at Object.registerPlugins (http://localhost:53062/packages/mekfox/generated_plugin_registrant.dart.lib.js:17:46)
at main (http://localhost:53062/web_entrypoint.dart.lib.js:31:35)
at main.next (<anonymous>)
at runBody (http://localhost:53062/dart_sdk.js:38659:34)
at Object._async [as async] (http://localhost:53062/dart_sdk.js:38690:7)
at main$ (http://localhost:53062/web_entrypoint.dart.lib.js:30:18)
The fix for this is to add firebase javascript files to index.html under web folder
<body> <script src="https://www.gstatic.com/firebasejs/8.6.1/firebase-app.js"></script> <script src="https://www.gstatic.com/firebasejs/8.6.1/firebase-auth.js"></script> <script src="https://www.gstatic.com/firebasejs/8.6.1/firebase-firestore.js"></script> <script src="https://www.gstatic.com/firebasejs/8.6.1/firebase-auth.js"></script> <script src="https://www.gstatic.com/firebasejs/8.6.1/firebase-storage.js"></script>
