Flutter iOS build failed an error of pod files: Podfile is out of date

I'm trying to build my app on the iOS simulator (iOS 13), but the build fails and gives an error of pod files "Podfile is out of date"

This is the error.

Launching lib/main.dart on iPhone 11 Pro Max in debug mode...
Warning: Podfile is out of date
  This can cause a mismatched version of Flutter to be embedded in your app, which may result in App Store submission rejection or crashes.
  If you have local Podfile edits you would like to keep, see https://github.com/flutter/flutter/issues/24641 for instructions.
To regenerate the Podfile, run:
  rm ios/Podfile

Warning: Podfile is out of date
  This can cause issues if your application depends on plugins that do not support iOS.
  See https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms for details.
  If you have local Podfile edits you would like to keep, see https://github.com/flutter/flutter/issues/45197 for instructions.
To regenerate the Podfile, run:
  rm ios/Podfile

Running Xcode build...
Xcode build done.                                            7,8s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **


Xcode's output:
↳
    /Users/kareldebedts/developer/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.11/ios/Classes/CloudFirestorePlugin.m:155:24: error: no visible @interface for 'FIRQuery' declares the selector 'queryWhereField:arrayContainsAny:'
            query = [query queryWhereField:fieldName arrayContainsAny:value];
                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kareldebedts/developer/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.11/ios/Classes/CloudFirestorePlugin.m:157:24: error: no visible @interface for 'FIRQuery' declares the selector 'queryWhereFieldPath:arrayContainsAny:'
            query = [query queryWhereFieldPath:fieldPath arrayContainsAny:value];
                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kareldebedts/developer/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.11/ios/Classes/CloudFirestorePlugin.m:163:24: error: no visible @interface for 'FIRQuery' declares the selector 'queryWhereField:in:'
            query = [query queryWhereField:fieldName in:value];
                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kareldebedts/developer/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.11/ios/Classes/CloudFirestorePlugin.m:165:24: error: no visible @interface for 'FIRQuery' declares the selector 'queryWhereFieldPath:in:'
            query = [query queryWhereFieldPath:fieldPath in:value];
                     ~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Users/kareldebedts/developer/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.12.11/ios/Classes/CloudFirestorePlugin.m:764:16: warning: 'timestampsInSnapshotsEnabled' is deprecated [-Wdeprecated-declarations]
          settings.timestampsInSnapshotsEnabled = (bool)call.arguments[@"timestampsInSnapshotsEnabled"];
                   ^
    In module 'FirebaseFirestore' imported from /Users/kareldebedts/DRINKM8/drinkm8_git/ios/Pods/Headers/Public/Firebase/Firebase.h:31:
    /Users/kareldebedts/DRINKM8/drinkm8_git/ios/Pods/FirebaseFirestore/Firestore/Source/Public/FIRFirestoreSettings.h:69:20: note: 'timestampsInSnapshotsEnabled' has been explicitly marked deprecated here
        __attribute__((deprecated));
                       ^
    1 warning and 4 errors generated.

Could not build the application for the simulator.
Error launching application on iPhone 11 Pro Max.

I tried rm ios/Podfile, but the terminal says the command doesn't exist.

This is my pubspec.yaml.

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^0.1.2
  firebase_core: ^0.4.0
  firebase_auth: ^0.11.1+12
  flutter_facebook_login: ^2.0.1
  cloud_firestore: ^0.12.7+1
  shared_preferences: ^0.5.3+4
  geolocator: ^5.1.1+1
  url_launcher: ^5.1.2
  rflutter_alert: ^1.0.3
  font_awesome_flutter: ^8.5.0
  flutter_picker: ^1.0.13
  uuid: 2.0.1
  image_picker: ^0.6.1
  path_provider: ^1.2.0
  image: ^2.1.4
  firebase_storage: ^3.0.4
  flutter_datetime_picker: ^1.2.5
  intl: ^0.15.8
  native_contact_picker: ^0.0.6
  flutter_spinkit: ^4.0.0
  transparent_image: ^1.0.0
  connectivity: ^0.4.3+7
  flare_splash_screen: ^2.1.3
  algolia: ^0.1.6+1
  http: ^0.12.0+2
  cloud_functions: ^0.4.1+6
  firebase_messaging: ^5.0.2
  avatar_glow: ^1.0.0
  google_maps_flutter: ^0.5.21+8
  geoflutterfire: ^2.0.2
  rxdart: ^0.22.2
  auto_size_text: ^2.1.0
  camera: ^0.5.4+1
  video_player: ^0.10.2+1
  story_view: ^0.11.0
  thumbnails: ^1.0.1
  image_crop: ^0.3.1
  file_picker: ^1.4.2
  pdf_viewer_plugin: ^1.0.0+2
  flutter_background_geolocation: ^1.3.2
  location_permissions: ^2.0.3
  image_downloader: ^0.19.1
  permission_handler: ^3.3.0
  firebase_database: ^3.1.0

What can cause the problem? Maybe it's because I upgraded the simulator to iOS 13.

Solution

This mostly happens when you upgrade your Flutter application. To solve this issue, follow the below steps

Go to Your_Project_Directory/ios/ and remove Podfile or you can do it by running the following command in the root project directory
```
rm ios/Podfile
```
Run your project again. This will create a new and updated Podfile for you
```
flutter run
```