解析失败:'de.greenrobot:eventbus:2.4.0'

Failed to resolve: 'de.greenrobot:eventbus:2.4.0'

我正在使用 Android Studio,但是当我尝试将:compile 'de.greenrobot:eventbus:2.4.0' 添加到我的应用程序组件的 gradle 文件中的 dependencies 时,我收到一条横幅:项目同步成功。打开 'Messages' 视图以查看发现的错误 。在消息窗格中,它显示错误消息:

Error:(28, 13) Failed to resolve: de.greenrobot:eventbus:2.4.0
<a href="openFile">Show in File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a>

检查时EventBus on github I find that the latest version does exist on maven central

会不会是 android 工作室配置错误之类的?

下面是其余可以正常工作的依赖项(没有事件总线依赖项):

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "com.aiesec"
        minSdkVersion 9
        targetSdkVersion 22
        versionCode 1
        versionName "0.1"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:22.0.0'
    compile 'com.parse.bolts:bolts-android:1.+'
    compile 'com.nineoldandroids:library:2.4.0'
    compile 'com.android.support:support-v4:22.0.0'
    compile 'com.android.support:cardview-v7:22.0.0'
    compile 'de.greenrobot:eventbus:2.4.0'
}

这很尴尬,但问题是 gradle 文件(在我项目的 root/base 文件夹中)在它的 allprojects 存储库列表中没有 mavenCentral!

所以如下所示将 mavenCentral() 添加到 allprojectsrepositories 为我修复了 gradle 同步错误:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.2.3'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        jcenter()
        mavenCentral()
    }
}