android studio 4.12,无法解决：junit：junit：4.12在android studio 1.4在ubuntu上

当我在ubuntu上的

android studio 1.4中创建新项目时.

当毕业生的同步完成时,我收到此错误

testCompile 'junit:junit:4.12'

在app / build.gradle上显示消息

Error:(23,17) Failed to resolve: junit:junit:4.12

Show in File

Show in Project Structure dialog

// build gradle(app module)

apply plugin: 'com.android.application'

android {

compileSdkVersion 23

buildToolsVersion "23.0.1"

defaultConfig {

applicationId "com.example.abhishek.vearch"

minSdkVersion 16

targetSdkVersion 23

versionCode 1

versionName "1.0"

}

buildTypes {

release {

minifyEnabled false

proguardFiles getDefaultProguardFile('proguard-android.txt'),'proguard-rules.pro'

}

}

}

dependencies {

compile fileTree(dir: 'libs',include: ['*.jar'])

testCompile 'junit:junit:4.12'

compile 'com.android.support:appcompat-v7:23.0.1'

compile 'com.android.support:design:23.0.1'

}

//建立毕业生(项目)

//顶级构建文件,您可以在其中添加所有子项目/模块通用的配置选项.

buildscript {

repositories {

jcenter()

}

dependencies {

classpath 'com.android.tools.build:gradle:1.3.0'

// NOTE: Do not place your application dependencies here; they belong

// in the individual module build.gradle files

}

}

allprojects {

repositories {

jcenter()

}

}

task clean(type: Delete) {

delete rootProject.buildDir

}