Android 梯度同步失败：无法解析配置的所有依赖项'；：app:debugRuntimeClasspath'；

我最近将我的Android Studio更新为3.0.1版，并启动了一个新项目，其中包含一个空白活动。gradle同步启动后（我打开项目后），我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androidsdkmanager重新安装了支持库，并将maven添加到依赖项中，但到目前为止还无法解决这个问题

构建梯度：

// 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
}

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'
}

应用程序级构建梯度：

// 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
}

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'
}

改变这个

 android {
 compileSdkVersion 26
 defaultConfig {
    applicationId "com.example.vishalbisht.test"
    minSdkVersion 15
    targetSdkVersion 26
    versionCode 1
    versionName "1.0"
    testInstrumentationRunner 
 "android.support.test.runner.AndroidJUnitRunner"
}

到

并使用以下任意一种

google（）

或maven

{url“https://maven.google.com“}

---

阅读我之前的答案

我在应用程序级构建梯度中评论了以下几行，从而绕过了这个问题

   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。

将你的Gradle和Gradle版本插件升级到最新版本。并将您的项目迁移到androidx

   classpath 'com.android.tools.build:gradle:3.5.1'

还有格拉德尔

#Mon Nov 04 15:09:35 IRST 2019
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

---

与问题分享你的

Build Gradle

，发布你的应用级别

Build.Gradle

file@Nilu希望这有帮助。@VishalBisht对于测试用例

buildToolsVersion“27.0.0”

您的错误是

连接到dl.google.com:443[dl.google.com/216.58.197.46]失败：连接被拒绝：连接

尝试与稳定的Internet连接同步不做任何事情Vishal，它可以工作！你介意解释一下为什么我们需要注释掉这两行吗？谢谢。@userchord我当时的理解是，这两个库没有更新以与android版本3.0.1的改进构建过程兼容。你在哪个版本的Android studio上遇到了这个问题？