Android studio 3无法下载存储库(错误:无法下载资源的SHA1)

Question

我使用android studio 3.0.0版.

更新之前我使用SDK管理器更新支持库.但更新后的android studio 3我应该通过更新https://dl.google.com/dl/android/maven2/.所以我需要支持库26.1.0.

在async gradle上我有这个错误:

Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve junit:junit:4.12.

Could not resolve junit:junit:4.12.
Required by:
    project :app > com.android.support.test:runner:1.0.1
 > Could not resolve junit:junit:4.12.
    > Failed to download SHA1 for resource 'https://dl.google.com/dl/android/maven2/junit/junit/4.12/junit-4.12.pom'.
          > For input string: "<!"

为什么不能下载这个:https://dl.google.com/dl/android/maven2/junit/junit/4.12/junit-4.12.pom？

我使用代理但无法下载.

这个错误显示所有依赖库(appcampatv7,设计,annonations等)

如何解决此问题无法下载资源的SHA1？

更新:

// 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:3.0.0'


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

allprojects {
    repositories {
        google()
        jcenter()
    }
}

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

和

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.2"
    defaultConfig {
        applicationId "com.example.testtesttest"
        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.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:design:26.1.0'
    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

经过大量搜索后解决了这个问题.在gradle.propertices文件集代理中http,https然后再次同步.

systemProp.http.proxyHost=127.0.0.1
systemProp.https.proxyPort=12345
org.gradle.jvmargs=-Xmx1234m
systemProp.https.proxyHost=127.0.0.1
systemProp.http.proxyPort=12345