升级后无法解析依赖项

Question

我升级了我的AS，错误开始出现
我找了所有的地方，但我不能解决问题

apply plugin: 'com.android.application'

android {
    buildToolsVersion "26.0.2"
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.student.myapplication"
        minSdkVersion 23
        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'
    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'
}

这是我的构建。gradle（项目），脱机是未检查的，我做了无效和重启没有工作，

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

    buildscript {
        repositories {
            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()
        }
    }

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

什么意思不能解决依赖？这是我在gradle（应用程序）中添加存储库时得到的结果

Answer 1

您可以尝试将这些添加到您的依赖项中…

   repositories {
    mavenCentral()
    maven { url 'https://maven.google.com' }
}

这才是它该有的样子。

apply plugin: 'com.android.application'

repositories {
        mavenCentral()
        maven { url 'https://maven.google.com' }
    }

    android {
        buildToolsVersion "26.0.2"
        compileSdkVersion 26
        defaultConfig {
            applicationId "com.student.myapplication"
            minSdkVersion 23
            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'
        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'
    }