Android Studio无法解析Espresso 3.0.0

Question

根据迄今为止的Android Espresso文档:

添加Espresso依赖项

要将Espresso依赖项添加到项目中,请完成以下步骤:

1. 打开应用程序的build.gradle文件.这通常不是顶级的build.gradle文件,而是app/build.gradle.
2. 在依赖项中添加以下行:
   

androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.0'
androidTestCompile 'com.android.support.test:runner:1.0.0'

我创建了一个新项目,生成的app/gradle文件是这样的:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    defaultConfig {
        applicationId "com.app.test"
        minSdkVersion 24
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.+'
    testCompile 'junit:junit:4.12'
}

当我将其更改为以下内容时:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.0"
    defaultConfig {
        applicationId "com.app.test"
        minSdkVersion 24
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:26.+'
    testCompile 'junit:junit:4.12'
    // App's dependencies, including test
    compile 'com.android.support:support-annotations:22.2.0'

    // Testing-only dependencies
    androidTestCompile 'com.android.support.test:runner:1.0.0'
    androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.0'
}

我收到以下错误:

错误:(29,24)无法解决:com.android.support.test:runner:1.0.0
    安装存储库和同步项目
错误:(30,24)无法解决:com.android.support.test.espresso: espresso-core:3.0.0
    安装存储库和同步项目

我试过点击"安装存储库和同步项目"链接但没有任何反应.我也尝试过查看SDK管理器,但我真的看不到任何东西.

Answer 1

由于评论的解决方案正在解决问题,我将其作为其他人的答案添加:

请务必将Google的maven链接添加到主build.gradle文件:

allprojects {
    repositories {
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}