Installing cloud_firestore plugin -> Unable to merge dex

[ryzizub]

I added cloud_firestore plugin into my pubspec.yaml file and when i make flutter run it keeps saying errors.

Pubspec.yaml

name: my_admin
description: My Admin Test App

dependencies:
  flutter:
    sdk: flutter
  cupertino_icons: ^0.1.2
  firebase_auth: ^0.5.19
  cloud_firestore: ^0.7.4

dev_dependencies:
  flutter_test:
    sdk: flutter
flutter:
  uses-material-design: true

  # To add assets to your application, add an assets section, like this:
  # assets:
  #  - images/a_dot_burr.jpeg
  #  - images/a_dot_ham.jpeg

Logs

flutter run
Launching lib/main.dart on Redmi Note 4 in debug mode...
Initializing gradle...                                       0,9s
Resolving dependencies...                                    1,9s
Running 'gradlew assembleDebug'...
registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedFolders(FileCollection)

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> java.lang.RuntimeException: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s
Gradle build failed: 1

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel beta, v0.5.1, on Microsoft Windows [Version 10.0.17134.48], locale cs-CZ)
[√] Android toolchain - develop for Android devices (Android SDK 28.0.2)
[√] Android Studio (version 3.1)
[!] VS Code, 64-bit edition (version 1.26.1)
[√] Connected devices (1 available)

! Doctor found issues in 1 category.

[ryzizub]

Found solution.... i added multiDexEnabled true into defaultConfig in app/build.gradle

[Yczar]

i Solved this error by setting multiDexEnabled true in the defaultConfig on your app build gradle

[github-actions]

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