找不到 com.google.firebase:firebase-core:9.0.0？

Question

在我的应用程序中，我尝试使用 gcm 服务，但我什至无法编译 gradle。我不断收到消息说我缺少“firebase core”，尽管我不知道如何安装它。

这是我的顶级 gradle 文件：

buildscript {
repositories {
    jcenter()

}
dependencies {
    classpath 'com.android.tools.build:gradle:2.1.2'
    classpath "io.realm:realm-gradle-plugin:1.1.0"
    classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
    classpath 'com.google.gms:google-services:3.0.0'
  }
}

allprojects {
repositories {
    jcenter()
    maven {
        url "https://jitpack.io"
    }

    maven {
        url "https://mint.splunk.com/gradle/"
    }
}
}

这是我的模块级 gradle 文件：

apply plugin: 'com.android.application'
apply plugin: 'realm-android'
apply plugin: 'com.google.gms.google-services'


android {

compileSdkVersion 24
buildToolsVersion "24.0.0"
defaultConfig {
    applicationId "roof.android"
    minSdkVersion 17
    targetSdkVersion 23
    versionCode 11
    versionName "0.0.4"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}
packagingOptions {
    exclude 'META-INF/NOTIC E.txt'
    exclude 'META-INF/LICENSE.txt'
    exclude 'META-INF/maven/com.fasterxml.jackson.core/jackson-core/pom.properties'
    exclude 'META-INF/maven/com.fasterxml.jackson.core/jackson-core/pom.xml'
}
}

dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')

// "The Android Support Library package contains several libraries that can be included in your application" -- https://developer.android.com/topic/libraries/support-library/features.html
compile 'com.android.support:appcompat-v7:24.0.0'

// "Native android recycler view library" -- https://developer.android.com/topic/libraries/support-library/features.html
compile 'com.android.support:recyclerview-v7:24.0.0'

// "A powerful image downloading and caching library for Android" -- http://square.github.io/picasso/
compile 'com.squareup.picasso:picasso:2.5.2'

// "Volley is an HTTP library that makes networking for Android apps easier and most importantly, faster" -- https://developer.android.com/training/volley/index.html
compile 'com.android.volley:volley:1.0.0'

// "JsonWebTokens in Auth0"  -- https://auth0.com/docs/jwt
compile 'com.auth0:java-jwt:2.1.0'

// "Joda-Time provides a quality replacement for the Java date and time classes" -- http://www.joda.org/joda-time/
compile 'joda-time:joda-time:2.8.1'

// "Android loading or progress dialog widget library, provide efficient way to implement iOS like loading dialog and progress wheel" -- https://github.com/Cloudist/ACProgressLite
compile 'cc.cloudist.acplibrary:library:1.2.1'

// "A RecyclerView that is powered by Realm and lots more" -- https://github.com/thorbenprimke/realm-recyclerview
compile 'com.github.thorbenprimke:realm-recyclerview:0.9.22'

// "A beautiful ripple animation for your app" -- https://github.com/skyfishjy/android-ripple-background
compile 'com.skyfishjy.ripplebackground:library:1.0.1'

// "A logger with a small, extensible API which provides utility on top of Android's normal Log class." -- http://jakewharton.github.io/timber/
compile 'com.jakewharton.timber:timber:4.1.2'

// "Field and method binding for Android views" -- http://jakewharton.github.io/butterknife/
compile 'com.jakewharton:butterknife:8.1.0'
apt 'com.jakewharton:butterknife-compiler:8.1.0'

// "An HTTP+HTTP/2 client for Android and Java applications." -- http://square.github.io/okhttp/
compile 'com.squareup.okhttp3:okhttp:3.3.1'

// "Android client for Sentry"
compile 'com.joshdholtz.sentry:sentry-android:1.4.1'

compile 'com.google.android.gms:play-services-gcm:9.2.0'

}

Answer 1

1. 在模块 Gradle 文件（通常是

   app/build.gradle

   ）中，在文件底部添加 apply plugin(

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

   ) 行以启用 Gradle 插件。

2. 您还应该添加 Firebase

   com.google.firebase:firebase-core

   和

   com.google.firebase:firebase-messaging

   SDK 的依赖项：

   apply plugin: 'com.android.application'
   
   android {
     // ...
   }
   
   dependencies {
     // ...
     compile 'com.google.firebase:firebase-core:10.2.1'
     compile 'com.google.firebase:firebase-messaging:10.2.1'
   }
   
   // ADD THIS AT THE BOTTOM
   apply plugin: 'com.google.gms.google-services'
   

确保您在使用 Firebase 时安装了最新版本的 'Google Play 服务' 和 'Google 存储库'。

请按照以下步骤安装：

1. 打开Android studio
2. 转到菜单栏 > 工具 > Android > SDK 管理器
3. 单击选项卡 > SDK 工具
4. 检查并安装 “Google Play 服务” 和 “Google 存储库”
5. 点击应用并等待下载

最后，再次同步并构建您的项目。

Answer 2

您想在您的应用程序中添加推送通知吗？

使用 firebase 而不是 GCM。它是 GCM 的增强版。

您需要以下依赖项来获取 Firebase 推送通知。

compile 'com.google.firebase:firebase-messaging:9.0.1'
compile 'com.google.android.gms:play-services-gcm:9.0.1'

Answer 3

我对

com.google.firebase:firebase-core:11.8.0

也遇到了同样的问题，将

google()

存储库移至

jcenter()

上方后，它就起作用了。

在这期间我使用了

Build -> Clean Project

。

./build.gradle

buildscript {
    repositories {
        google() // <- now on top!
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath 'com.google.gms:google-services:3.1.1'
    }
}

allprojects {
    repositories {
        google() // <- now on top!
        jcenter()
    }
}

Answer 4

如果要添加firebase核心，可以添加

compile 'com.google.firebase:firebase-core:9.0.0'

在模块级 gradle 文件中的依赖项标签下。

如果仍然无法解决，也许您需要先更新 SDK 以获取 Google Play Services rev 30 和 Google Repository rev 26。详情请参阅此处。

Answer 5

在存储库部分的 android/build.gradle 中，尝试将 google() 移至上方 jcenter()。