android - Gradle 同步失败 : Could not resolve all dependencies for configuration ':app:debugRuntimeClasspath'

Question

我最近将我的 Android Studio 更新到 3.0.1 版，并开始了一个包含空白 Activity 的新项目。一旦 gradle 同步开始(只要我打开项目)，我就会在事件日志中收到一条消息:

Gradle sync failed: Could not resolve all dependencies for configuration ':app:debugRuntimeClasspath'.
                Could not determine artifacts for com.android.support:appcompat-v7:26.1.0
                Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7/26.1.0/appcompat-v7-26.1.0.aar'.
                Could not HEAD 'https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7/26.1.0/appcompat-v7-26.1.0.aar'.
                Connect to dl.google.com:443 [dl.google.com/216.58.197.46] failed: Connection refused: connect
                Connection refused: connect
                Consult IDE log for more details (Help | Show Log) (3s 878ms)

我从 Android SDK 管理器重新安装了支持存储库并将 maven 添加到依赖项，但到目前为止还无法解决问题。

构建等级:

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

buildscript {  
 repositories {
    google()
    jcenter()
}
dependencies {
    classpath 'com.android.tools.build:gradle:3.0.1'

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

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

task clean(type: Delete) {
 delete rootProject.buildDir
}

应用级构建-gradle:

apply plugin: 'com.android.application'

android {
 compileSdkVersion 26
 defaultConfig {
    applicationId "com.example.vishalbisht.test"
    minSdkVersion 15
    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 {
 implementation fileTree(dir: 'libs', include: ['*.jar'])
 implementation 'com.android.support:appcompat-v7:26.1.0'
 implementation 'com.android.support:design:26.1.0'
 implementation 'com.android.support.constraint:constraint-layout:1.0.2'
 testImplementation 'junit:junit:4.12'
 androidTestImplementation 'com.android.support.test:runner:1.0.1'
 androidTestImplementation 'com.android.support.test.espresso:espresso-
 core:3.0.1'
}

Answer 1

我能够通过在应用程序级 build-gradle 中评论以下行来解决这个问题

   androidTestImplementation 'com.android.support.test:runner:1.0.1'
   androidTestImplementation 'com.android.support.test.espresso:espresso-
   core:3.0.1'

然后它开始工作，不确定这是否是一个可接受的解决方案，但据我所知，我至少可以运行和编译我的代码。

同样在Android studio 3.1更新之后，我也没有遇到过这个问题。