CODEWITHSUNDEEP
androidiosxcodefirebaseflutter
Sagar Acharya
Sagar Acharya

Reputation: 3777

Flutter app crashes for iOS build on startup

I am working on the application, where it was working in a proper manner. but later I did update the mac to macOS Monterey 12.2.1 and updated my iPhone device to latest 15.2 and Xcode 13.0 and used the latest one 13.2.1. But now the application runs crashes on startup or even after login with but there is which is driving me crazy.

Point is it does not work when building on xcode and it works fine when running from Android studio. So below are my specs that I am working on:

[✓] Flutter (Channel stable, 2.8.1, on macOS 12.2.1 21D62 darwin-x64, locale en-GB)
    • Flutter version 2.8.1 at /Users/username/development/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 77d935af4d (3 months ago), 2021-12-16 08:37:33 -0800
    • Engine revision 890a5fca2e
    • Dart version 2.15.1

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /Users/username/Library/Android/sdk
    • Platform android-31, build-tools 30.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.11+0-b60-7590822)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 13.0)
    • Xcode at /Users/username/Desktop/Xcode.app/Contents/Developer
    • CocoaPods version 1.11.2

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2021.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.11+0-b60-7590822)

[✓] VS Code (version 1.63.2)
    • VS Code at /Users/neosoft/Downloads/Visual Studio Code.app/Contents
    • Flutter extension version 3.34.0

[✓] Connected device (1 available)
    • Chrome (web) • chrome • web-javascript • Google Chrome 99.0.4844.51

Image for error on xcode

I have been using the Firebase Firestore as a data store. What can I try next?

Upvotes: 19

Views: 38269

Answers (8)

Xavier Soh
Xavier Soh

Reputation: 165

I happened to find that this problem is related to incompatible APIs. What I suggest is to create a new project and add the APIs in pubspec.xml file one by one, compiling each time until the crash happens again. Pay particular attention to the APIs that manipulate images, the admob, google map and the APIs derived from webview

Upvotes: 0

Mıktad Tahir Durak
Mıktad Tahir Durak

Reputation: 2884

If you are using phone authentication, be aware of that you need to add Encoded App Id from firebase console to Xcode>Targets>Info>Url Scheme

Step1 : Go to Firebase Console > Project Settings > iOS find your iOS apps Encoded App Id Firebase iOS Encoded App Id

Then, copy and paste it Xcode Workspace>Runner>Targets>Runner>Info>Add URL Types>URL Scheme

Xcode Url Scheme

Upvotes: 0

Vojta
Vojta

Reputation: 910

After some reading I found out that in my case it was probably this issue:

https://github.com/flutter/flutter/issues/60657

So I made a workaround for the issue by changing the build scheme to production one in case I need to have a build that works without debugger attached to the running application. (e.g. so my colleagues can test the app)

Step 1: enter image description here

Step 2: enter image description here

Upvotes: 10

Danil Horielov
Danil Horielov

Reputation: 127

In iOS 14+, debug mode Flutter apps can only be launched from Flutter tooling, IDEs with Flutter plugins or from Xcode.

Alternatively, build in profile or release modes to enable launching from the home screen.

Maybe because the flutter doesn't show you this text, you think it's a mistake

Or maybe rm -rf Podfile.lock then pod install

Upvotes: 9

Sharon A
Sharon A

Reputation: 2655

Inside iOS > AppDelegate.swift, add the FirebaseApp.configure() method before GeneratedPluginRegistrant.register(with: self)

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

Alternatively:

  1. Run flutter clean
  2. Navigate to the ios folder then delete the pods folder.
  3. From your terminal command cd ios , then run $pod install
  4. Once complete, right-click ios > Open in Xcode.
  5. From the application window top menu bar, click Product > Clean Build Folder
  6. Build the project (Product > Build)
  7. From your project terminal command flutter run

Upvotes: 9

Shawn
Shawn

Reputation: 163

For the most cases, the final solution for me was always deleting the whole ios folder (make sure to backup the logo, assets, ...), running flutter create -i swift . to recreate the ios folder, and running flutter clean.

Every time I face the error, I did those steps several times in a random order, and it just got solved.

Upvotes: 10

NøBi Mac
NøBi Mac

Reputation: 525

It seems like while building it takes reference from derive data for ios. Follow bellow steps hopefully, this will work

  1. Delete Derive data for ios
  2. Delete podfile.lock
  3. Execute flutter clean to your project terminal
  4. Execute flutter pub get
  5. Move to ios directory and execute pod install

Then try to build from Xcode.

Upvotes: 0

Kaushik Chandru
Kaushik Chandru

Reputation: 17802

Please take a backup of the project, delete pubSpec.lock, and from inside the ios folder delete 'Podfile.lock', pods directory and Xcworkspace. Then run flutter pub get then navigate to ios folder and run pod install. Then try building it in xcode.

Upvotes: 1

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