添加 Firestore 依赖项会导致 Flutter 应用程序出错

Posted 2023-02-23

【中文标题】添加 Firestore 依赖项会导致 Flutter 应用程序出错

【英文标题】：Adding Firestore dependency causes error in Flutter app

【发布时间】：2020-03-05 18:33:17

【问题描述】：

在我的 Flutter 项目中添加 cloud_firestore: ^0.12.10 依赖项会出错。

这些是我的项目所具有的依赖项：

dependencies:
  url_launcher: ^5.0.0
  flutter_launcher_icons: ^0.7.4

  cloud_firestore: ^0.12.10

  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for ios style icons.
  cupertino_icons: ^0.1.2
  firebase_messaging: ^5.1.6

dev_dependencies:
  flutter_test:
    sdk: flutter

flutter_icons:
  android: "launcher_icon"
  ios: true
  image_path: "assets/launcher_icon/LauncherIcon.png"

我尝试使用不同的 cloud_firestore 版本，但都不起作用。

这是flutter run 命令在终端中的输出：

Launching lib\main.dart on SM A505F in debug mode...
Initializing gradle...                                              1.1s
Resolving dependencies...                                          16.3s
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)

FAILURE: Build failed with an exception.

* What went wrong:
Failed to notify dependency resolution listener.
> The library com.google.android.gms:play-services-measurement-base is being requested by various other libraries at [[17.2.1,17.2.1]], but resolves to 16.5.0. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.
> The library com.google.firebase:firebase-iid is being requested by various other libraries at [[20.0.0,20.0.0]], but resolves to 17.1.2. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.

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

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

BUILD FAILED in 11s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done                        11.8s
Gradle task assembleDebug failed with exit code 1

这是flutter doctor -v的输出：

[√] Flutter (Channel stable, v1.9.1+hotfix.6, on Microsoft Windows [Version 10.0.18362.418], locale en-IN)
    • Flutter version 1.9.1+hotfix.6 at D:\flutter_windows_v1.9.1+hotfix.2-stable\flutter
    • Framework revision 68587a0916 (8 weeks ago), 2019-09-13 19:46:58 -0700
    • Engine revision b863200c37
    • Dart version 2.5.0


[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at C:\Users\aditl\AppData\Local\Android\sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.2
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)
    ! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses

[√] Android Studio (version 3.5)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 41.0.2
    • Dart plugin version 191.8593
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)

[√] VS Code (version 1.40.0)
    • VS Code at C:\Users\aditl\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.6.0

[√] Connected device (1 available)
    • SM A505F • RZ8M60LFVPP • android-arm64 • Android 9 (API 28)

! Doctor found issues in 1 category.

【参考方案1】：

您记录错误

* What went wrong:
Failed to notify dependency resolution listener.
> The library com.google.android.gms:play-services-measurement-base is being requested by various other libraries at [[17.2.1,17.2.1]], but resolves to 16.5.0. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.
> The library com.google.firebase:firebase-iid is being requested by various other libraries at [[20.0.0,20.0.0]], but resolves to 17.1.2. Disable the plugin and check your dependencies tree using ./gradlew :app:dependencies.

如果您已将 firebase 核心添加到 gradle 文件，则需要将其更新到 17.2.1，

虽然这是您的项目未启用 androidX 的问题 see how to migrate to androidX

更新

    Cannot fit requested classes in a single dex file (# methods: 81876 > 65536)
com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives:
The number of method references in a .dex file cannot exceed 64K.
Learn how to resolve this issue at https://developer.android.com/tools/building/multidex.html

您需要为您的应用程序启用multidex 如下

    android 
    defaultConfig 
        ...
        minSdkVersion 16
        targetSdkVersion 28
        multiDexEnabled true
    
    ...


dependencies 
  implementation "androidx.multidex:multidex:2.0.0"

【讨论】：

我按照页面上给出的步骤进行操作，但出现No usages found in the project 错误。所以，我跟着this answer手动迁移到AndroidX。我将所有依赖项更新为最新版本。没有 cloud_firestore 依赖，一切正常。当我添加 cloud_firestore: ^0.12.10 依赖项时，我得到了 this error。

@MasterAdit 我更新了我的答案以适应 multidex，如果您没有正确地将 firestore 添加到您的应用程序中，请考虑查看firebase.google.com/docs/flutter/setup

【参考方案2】：

在底部的 android/build.gradle 文件中添加这行代码。我认为您错过了添加服务插件的步骤。 试试这个

并将cloud_firestore: ^0.12.10 dependency 放在firebase_messaging dependency 下方。

代码：

apply plugin: 'com.google.gms.google-services'

【讨论】：

我在firebase_messaging 下方添加了cloud_firestore: ^0.12.10，但仍然出现错误。我已经在android/app/build.gradle 文件中有apply plugin: 'com.google.gms.google-services'（不在android/build.gradle 中）。我也尝试将apply plugin: 'com.google.gms.google-services' 添加到android/build.gradle，但它给了我一个不同的错误。

【参考方案3】：

在你的 Podfile 中的目标 'Runner' do block 中添加这一行，例如：

# ...
target 'Runner' do
  pod 'FirebaseFirestore', :git => 'https://github.com/invertase/firestore-ios-sdk-frameworks.git', :tag => '8.9.0'
# ...
end

【讨论】：

虽然此代码可能会解决问题，including an explanation 关于如何以及为什么解决问题将真正有助于提高您的帖子质量，并可能导致更多的赞成票。请记住，您正在为将来的读者回答问题，而不仅仅是现在提问的人。请edit您的回答添加解释并说明适用的限制和假设。