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

Question

在我的应用程序中，我试图使用gcm服务，但我甚至无法获得gradle编译。我不断收到我缺少'firebase核心'的消息，但我不知道如何安装它。

这是我的顶级gradle这个文件：

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/" 
    } 
} 
} 

这里是我的模块级gradle这个文件：

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

你想在你的应用程序中添加推送通知？

使用firebase而不是GCM。它是GCM的增强版本。

您需要以下关于Firebase推送通知的依赖关系。

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

进一步信息请访问http://codingaffairs.blogspot.com/2016/06/firebase-cloud-messaging-push.html

Answer 2

如果您要添加的火力点的核心，您可以在模块级gradle这个文件添加 compile 'com.google.firebase:firebase-core:9.0.0' 下dependencies标记。

如果仍然无法解决问题，也许您需要更新SDK以首先获得Google Play服务版本30和Google资源库版本26。细节请参阅here。

Answer 3

1. 在你的模块摇篮文件（通常是app/build.gradle），添加应用插件（apply plugin: 'com.google.gms.google-services'）线在文件，以使摇篮插件的底部。

2. 你也应该添加依赖的火力地堡com.google.firebase:firebase-core和com.google.firebase:firebase-messaging SDK的：

   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' 
   

请确保您有最新版本的“谷歌Play服务”和“谷歌版本库”在使用Firebase时安装了。

请按照以下步骤安装：

1. 打开Android工作室
2. 转到菜单栏>工具>安卓> SDK管理器
3. 点击选项卡> SDK工具
4. 检查和安装'Google Play Services' and 'Google Repository'
5. 点击Apply并等待下载广告

最后，同步和构建再次你的项目。