java - 添加 firebase 与 google play 服务冲突

Question

自从将 Firebase 添加到我的应用程序以便我可以通过应用中心向用户发送推送通知后，我遇到了很多问题。

我目前遇到两个库之间可能存在的合并问题。

Failed to notify dependency resolution listener.
The library com.google.android.gms:play-services-basement is being 
requested by various other libraries at [[15.0.1,15.0.1]], but 
resolves to 16.0.1. Disable the plugin and check your dependencies 
tree using ./gradlew :app:dependencies.

正如您在这里看到的，我对 play-services-basement 没有任何特定的依赖...

buildscript {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        classpath 'io.fabric.tools:gradle:1.+'
    }
}

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'io.realm:realm-gradle-plugin:5.3.1'
    }
}


apply plugin: 'com.android.application'

apply plugin: 'io.fabric'

apply plugin: 'realm-android'

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

realm {
    syncEnabled = true
}

repositories {
    maven { url 'https://maven.fabric.io/public' }
}

android {
    compileSdkVersion 28
    buildToolsVersion "28.0.3"
    defaultConfig {
        applicationId "com.xxxxsoftware.xxxx.xxxx"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode 36
        versionName "2.8.17"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    lintOptions {

        checkReleaseBuilds false

    }
    compileOptions {
        targetCompatibility JavaVersion.VERSION_1_8
        sourceCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation('com.crashlytics.sdk.android:crashlytics:2.9.4@aar') {
        transitive = true
    }
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    def appCenterSdkVersion = '1.9.0'

    implementation "com.microsoft.appcenter:appcenter-analytics:${appCenterSdkVersion}"
    implementation "com.microsoft.appcenter:appcenter-crashes:${appCenterSdkVersion}"
    implementation "com.microsoft.appcenter:appcenter-push:${appCenterSdkVersion}"

    implementation 'com.google.firebase:firebase-core:16.0.5'
    implementation 'com.google.code.gson:gson:2.8.2'
    implementation 'com.google.zxing:core:3.3.3'

    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support:design:28.0.0'
    implementation 'com.android.support:recyclerview-v7:28.0.0'
    implementation 'com.android.support:cardview-v7:28.0.0'
    implementation 'com.android.support:support-vector-drawable:28.0.0'

    implementation 'com.squareup.okhttp3:okhttp:3.10.0'
    implementation 'de.hdodenhof:circleimageview:2.1.0'
    implementation 'com.jakewharton.picasso:picasso2-okhttp3-downloader:1.1.0'
    implementation 'com.squareup.picasso:picasso:2.5.2'
    implementation 'com.github.barteksc:android-pdf-viewer:2.0.3'
    implementation 'pl.droidsonroids.gif:android-gif-drawable:1.2.15'
    implementation 'com.github.delight-im:Android-SimpleLocation:v1.0.1'
    implementation 'io.nlopez.smartlocation:library:3.3.3'
    implementation 'io.realm:android-adapters:3.0.0'
    implementation 'androidmads.library.qrgenearator:QRGenearator:1.0.3'
    implementation 'com.journeyapps:zxing-android-embedded:3.1.0@aar'
    implementation 'com.github.pwittchen:reactivenetwork-rx2:2.0.0'
}

我已经运行了命令 ./gradlew :app:dependencies 并打印出:

* What went wrong:
Project 'app' not found in root project 'ChimePassportAndroid'.

Answer 1

为了使用 Firebase 消息传递，您需要在 build.gradle 文件中添加相应的依赖项，如下所示:

implementation 'com.google.firebase:firebase-messaging:17.3.4'

你的问题就迎刃而解了。