Gradle 无法解析所有依赖项答案

【问题标题】：Gradle Could not resolve all dependenciesGradle 无法解析所有依赖项
【发布时间】：2015-06-13 21:54:39
【问题描述】：

我正在尝试一件简单的事情：导入一些 Google 的库以使用 Gmail API。我知道其中一些罐子在 mavenCentral 上不存在。因此，我从 sdk 管理器更新了我的 Google 存储库，并指示 gradle 查看 sdk。我还删除了依赖项末尾的版本号并用 + 替换它们，这并没有解决我的问题，因此回退到 original build.gradle 文件。

我的build.gradle 文件如下所示：

buildscript {
    repositories {
        mavenCentral()


        def androidHome = System.getenv("ANDROID_HOME")
        maven {
            url "$androidHome/extras/android/m2repository/"
        }
    }


    dependencies {
        classpath 'com.android.tools.build:gradle:0.14.0'
    }
}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"

    defaultConfig {
        applicationId "com.hellobusiness.hotels"
        minSdkVersion 14
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'),
                'proguard-rules.pro'
        }
    }
}


dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:22.1.1'
    compile 'com.google.android.gms:play-services:7.3.0'
    compile 'com.google.api-client:google-api-client:1.20.0'
    compile 'com.google.api-client:google-api-client-android:1.20.0'
    compile 'com.google.api-client:google-api-client-gson:1.20.0'
    compile 'com.google.apis:google-api-services-gmail:v1-rev29-1.20.0'
}

我得到的错误：

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'Hotels'.
> Could not resolve all dependencies for configuration ':_debugCompile'.
   > Could not find com.google.api-client:google-api-client:1.20.0.
     Searched in the following locations:
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/api-client/google-api-client/1.20.0/google-api-client-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/api-client/google-api-client/1.20.0/google-api-client-1.20.0.jar
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/api-client/google-api-client/1.20.0/google-api-client-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/api-client/google-api-client/1.20.0/google-api-client-1.20.0.jar
     Required by:
         :Hotels:unspecified
   > Could not find com.google.api-client:google-api-client-android:1.20.0.
     Searched in the following locations:
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/api-client/google-api-client-android/1.20.0/google-api-client-android-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/api-client/google-api-client-android/1.20.0/google-api-client-android-1.20.0.jar
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/api-client/google-api-client-android/1.20.0/google-api-client-android-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/api-client/google-api-client-android/1.20.0/google-api-client-android-1.20.0.jar
     Required by:
         :Hotels:unspecified
   > Could not find com.google.api-client:google-api-client-gson:1.20.0.
     Searched in the following locations:
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/api-client/google-api-client-gson/1.20.0/google-api-client-gson-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/api-client/google-api-client-gson/1.20.0/google-api-client-gson-1.20.0.jar
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/api-client/google-api-client-gson/1.20.0/google-api-client-gson-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/api-client/google-api-client-gson/1.20.0/google-api-client-gson-1.20.0.jar
     Required by:
         :Hotels:unspecified
   > Could not find com.google.apis:google-api-services-gmail:v1-rev29-1.20.0.
     Searched in the following locations:
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/apis/google-api-services-gmail/v1-rev29-1.20.0/google-api-services-gmail-v1-rev29-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/android/m2repository/com/google/apis/google-api-services-gmail/v1-rev29-1.20.0/google-api-services-gmail-v1-rev29-1.20.0.jar
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/apis/google-api-services-gmail/v1-rev29-1.20.0/google-api-services-gmail-v1-rev29-1.20.0.pom
         file:/home/sanctus/adt/sdk/extras/google/m2repository/com/google/apis/google-api-services-gmail/v1-rev29-1.20.0/google-api-services-gmail-v1-rev29-1.20.0.jar
     Required by:
         :Hotels:unspecified

我使用 eclipse 和 adt 插件，我从命令行使用 gradle

【问题讨论】：

更新这个类路径'com.android.tools.build:gradle:0.14.+'
请注释掉 compile 'com.google.api-client:google-api-client-android:1.20.0' 这个并检查它的效果
我更新了你提到的类路径，我收到一条消息提示我从我安装的 gradle 2.1 升级到 2.2。我这样做并重新尝试构建。编辑：我被困在“解决依赖关系”上大约 10 分钟......
不。刚刚得到一个 Build Failed 缺少相同的依赖项。

标签： android gradle android-gradle-plugin build.gradle

【解决方案1】：

您必须将此部分添加到您的build.gradle

repositories {
    mavenCentral()
}

这些库位于 Central Maven 中：

com.google.api-client:google-api-client:1.20.0.
com.google.api-client:google-api-client-android:1.20.0
com.google.api-client:google-api-client-gson:1.20.0

关于这个库，我不知道在哪里。

com.google.apis:google-api-services-gmail:v1-rev29-1.20.0

另外我建议你使用以下版本：

Android Studio 1.2.x
classpath 'com.android.tools.build:gradle:1.2.3'
gradle 2.4

【讨论】：