解析失败：com.android.support:appcompat-v7:27.1.1

Question

我是 android 的新手，安装 android studio 3.2.1 并尝试创建新项目，但出现此错误：

Failed to resolve: com.android.support:appcompat-v7:27.1.1

我的项目gradle：

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
    }
}
allprojects {
    repositories {
        google()
        jcenter()
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

应用 gradle 是：

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.example.brazzaqi.myapplication"
        minSdkVersion 15
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

我的依赖项：

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:27.1.1'
    compile 'com.android.support.constraint:constraint-layout:1.1.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

我该如何解决这个错误？谢谢。

Answer 1

试试这个：

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.example.brazzaqi.myapplication"
        minSdkVersion 15
        targetSdkVersion 28
        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-v7:28.0.0'
        implementation'com.android.support.constraint:constraint-layout:1.1.0'
        testImplementation 'junit:junit:4.12'
        androidTestImplementation 'com.android.support.test:runner:1.0.2'
        androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
        implementation 'com.android.support:design:28.0.0'
        implementation 'com.android.support:support-v4:28.0.0'
    }

Answer 2

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

解析失败：com.android.support:appcompat-v7:27.1.1

Failed to resolve: com.android.support:appcompat-v7:27.1.1

android

android-support-library

android-studio-3.0