Flutter iOS app showing white screen on launch and hang up on that screen

Question

I have a flutter application using a firebase auth library. When I launch its iOS version, It shows me a blank white screen and hangs up on that screen. I followed all the steps to add some firebase related flags into Info.plist like FirebaseScreenRecordingEnabled - NO, FirebaseScreenRecordingDeactiv - YES and one or two more. I have tried to clean the build folder and flutter cache. Just also tried this below answer as well: iOS Flutter with Firebase : white screen and SIGABRT in FlutterAppDelegate on launch

~/Documents/Work/Workspaces/flutter/myapp $ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, v1.10.7-pre.80, on Mac OS X 10.15.2 19C57, locale en-IN)

[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 11.2)
[✓] Android Studio (version 3.5)
[!] VS Code (version 1.41.1)
    ✗ Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter
[!] Connected device
    ! No devices available

! Doctor found issues in 2 categories.

FYI, I am using Android Studio for a flutter app.

Here are the logs from xCode logger:

2020-01-09 21:29:10.811285+0530 my-app[4621:1081677] Failed to find snapshot: /var/containers/Bundle/Application/57CC0DF5-D142-4748-A3D3-66E62A9F1A53/my-app.app/Frameworks/App.framework/flutter_assets/kernel_blob.bin
2020-01-09 21:29:11.365554+0530 my-app[4621:1081942] flutter: Observatory listening on http://127.0.0.1:57358/yuCVtFtKdlI=/
2020-01-09 21:29:11.426615+0530 my-app[4621:1081677] Configuring the default Firebase app...
2020-01-09 21:29:11.427922+0530 my-app[4621:1081920] 6.14.0 - [Firebase/Core][I-COR000004] App with name __FIRAPP_DEFAULT does not exist.
2020-01-09 21:29:11.429326+0530 my-app[4621:1081920] 6.14.0 - [Firebase/Core][I-COR000008] The project's Bundle ID is inconsistent with either the Bundle ID in 'GoogleService-Info.plist', or the Bundle ID in the options if you are using a customized options. To ensure that everything can be configured correctly, you may need to make the Bundle IDs consistent. To continue with this plist file, you may change your app's bundle identifier to 'dev.bipin.myapp'. Or you can download a new configuration file that matches your bundle identifier from https://console.firebase.google.com/ and replace the current one.
2020-01-09 21:29:11.547978+0530 my-app[4621:1081677] Configured the default Firebase app __FIRAPP_DEFAULT.
2020-01-09 21:29:11.614019+0530 my-app[4621:1081932] [VERBOSE-2:engine.cc(127)] Engine run configuration was invalid.
2020-01-09 21:29:11.614685+0530 my-app[4621:1081932] [VERBOSE-2:shell.cc(443)] Could not launch engine with configuration.
2020-01-09 21:29:11.696741+0530 my-app[4621:1081928] 6.14.0 - [Firebase/Analytics][I-ACS023007] Analytics v.60107000 started
2020-01-09 21:29:11.697266+0530 my-app[4621:1081928] 6.14.0 - [Firebase/Analytics][I-ACS023008] To enable debug logging set the following application argument: -FIRAnalyticsDebugEnabled
2020-01-09 21:29:13.657220+0530 my-app[4621:1081923] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2020-01-09 21:29:13.662995+0530 my-app[4621:1081923] [MC] Reading from public effective user settings.
2020-01-09 21:29:34.648535+0530 my-app[4621:1082005] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C1.1:2][0x14de28120] get output frames failed, state 8196
2020-01-09 21:29:34.649072+0530 my-app[4621:1082005] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C1.1:2][0x14de28120] get output frames failed, state 8196
2020-01-09 21:29:34.650329+0530 my-app[4621:1082005] TIC Read Status [1:0x0]: 1:57
2020-01-09 21:29:34.650477+0530 my-app[4621:1082005] TIC Read Status [1:0x0]: 1:57
2020-01-09 21:29:42.223040+0530 my-app[4621:1082027] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C2.1:2][0x14dd3cee0] get output frames failed, state 8196
2020-01-09 21:29:42.224070+0530 my-app[4621:1082027] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C2.1:2][0x14dd3cee0] get output frames failed, state 8196
2020-01-09 21:29:42.225360+0530 my-app[4621:1082027] TIC Read Status [2:0x0]: 1:57
2020-01-09 21:29:42.225503+0530 my-app[4621:1082027] TIC Read Status [2:0x0]: 1:57

But no luck so far. Can any please help me here. Thanks

Answer 1

Ohh, I finally found that this something Flutter framework issue with iOS 14 and later devices, Please checkout more details here: https://github.com/flutter/flutter/issues/60657#issuecomment-688478590

Answer 2

Error log clearly saying that

The project's Bundle ID is inconsistent with either the Bundle ID in 'GoogleService-Info.plist', or the Bundle ID in the options if you are using a customized options. To ensure that everything can be configured correctly, you may need to make the Bundle IDs consistent. To continue with this plist file, you may change your app's bundle identifier to 'com.tethys.client'. Or you can download a new configuration file that matches your bundle identifier from https://console.firebase.google.com/ and replace the current one.

Try replacing your GoogleService-Info.plist from iOS project. Make sure it has a valid Bundle ID

Also, Make sure if you are running a below command before creating an archive or before distributing it.

flutter build ios --release

or

flutter build ios

flutter build defaults to --release.

Answer 3

As of 28 April 2021, what worked for me (after days of struggle):

in AppDelegate.swift (flutter-project/ios/Runner): Add these 2 lines:

FirebaseApp.configure()
GeneratedPluginRegistrant.register(with: self)

in terminal:

flutter build ios

Then run your project in XCode

Answer 4

flutter clean

flutter build --release

then XCode/Archive