Android Studio 2.3.1：Gradle项目同步失败

Question

我在Android Studio 2.3.1中启动了一个新项目。 它开始显示以下错误。

 E:\\My_Fun_Projects\\Android\\MyAndroidApps\\MyApplication1\\app\\build.gradle Error:Error:line (38)Failed to resolve: junit:junit:4.12 <a href="openFile:E:/My_Fun_Projects/Android/MyAndroidApps/MyApplication1/app/build.gradle">Show in File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a> Error:Error:Failed to resolve: javax.inject:javax.inject:1 <a href="openFile:E:/My_Fun_Projects/Android/MyAndroidApps/MyApplication1/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a> Error:Error:Failed to resolve: javax.annotation:javax.annotation-api:1.2 <a href="openFile:E:/My_Fun_Projects/Android/MyAndroidApps/MyApplication1/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a> Error:Error:Failed to resolve: com.google.code.findbugs:jsr305:2.0.1 <a href="openFile:E:/My_Fun_Projects/Android/MyAndroidApps/MyApplication1/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a> Error:Error:Failed to resolve: org.hamcrest:hamcrest-library:1.3 <a href="openFile:E:/My_Fun_Projects/Android/MyAndroidApps/MyApplication1/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a> Error:Error:Failed to resolve: org.hamcrest:hamcrest-integration:1.3 <a href="openFile:E:/My_Fun_Projects/Android/MyAndroidApps/MyApplication1/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a> Error:Error:Failed to resolve: com.squareup:javawriter:2.1.1 <a href="openFile:E:/My_Fun_Projects/Android/MyAndroidApps/MyApplication1/app/build.gradle">Open File</a><br><a href="open.dependency.in.project.structure">Show in Project Structure dialog</a> 

Answer 1

只需从build.gradle文件中删除testCompile 'junit:junit:x.xx' ，它就可以正常工作。

如果需要junit，则可能需要添加存储库URL。 因为android studio可能没有junit库。

android{
    repositories {
    jcenter()
    maven { url "https://www.jitpack.io" }
    mavenCentral()
}

Answer 2

确保您已连接到互联网。

如果您居住在伊朗这样的国家/地区，则应使用VPN并重新同步项目。

Answer 3

它通过删除依赖项区域（页面底部下方）上的应用程序级别gradle文件上的testCompile 'junit:junit:4.12'来工作