android - 无法解决 : com. android.support.design :25. 4.0

Question

我在 build.gradle(Module:app) 中添加了以下行:

compile 'com.android.support:design:25.4.0' 

但是在执行 Gradle 时，我得到了

Failed to resolve: com.android.support.design:25.4.0

我从 android support design library 获得了支持代码并将其添加到新项目中。我将它添加到依赖部分，如下所示:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'

    compile 'com.android.support:design:25.4.0'
}

关于我做错了什么有什么想法吗？

Answer 1

Important: The support libraries are now available through Google's Maven repository. You do not need to download the support repository from the SDK Manager. For more information, see Support Library Setup.

第 1 步:为您的应用打开 build.gradle 文件。

第 2 步:确保存储库部分包含一个带有“https://maven.google.com”端点的 maven 部分。例如:

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

第 3 步: 将支持库添加到依赖项部分。例如，要添加 v4 core-utils 库，请添加以下行:

dependencies {
    ...
    compile "com.android.support:support-core-utils:25.4.0"
}