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android studio無法解決:亞軍,但無法解決:espresso-core,但無法解決:監控

[英]android studio failed to resolve: runner and failed to resolve: espresso-core and failed to resolve: monitor

我安裝了android studio 3.1.3,當我嘗試構建新的應用程序時..在gradle同步期間,我遇到了一個問題,如下圖所示:

在此處輸入圖片說明

無法解決:濃縮咖啡打開文件

無法解決:運行器打開文件

無法解決:監視打開文件

那就是我的應用程序(build.gradle):

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    defaultConfig {
        applicationId "com.example.tareq.ds"
        minSdkVersion 28
        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-alpha3'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    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'
}

那就是我的項目(build.gradle):

buildscript {

    repositories {
        google()
        mavenCentral()

    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.1.3'


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

allprojects {
    repositories {
        google()
        mavenCentral()

    }
}

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

跟着這些步驟:

  • 應用程序的“打開模塊”設置
  • 在依賴項下,單擊“ +”符號選項卡,然后一一添加所有必需的依賴項
  • 點擊“應用”按鈕

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