无法解决：com.google.firebase:firebase-auth:11.4.0 [重复]

Question

这些是我的应用程序 gradle 文件中的依赖项。我该如何解决这个错误？

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.+'
    androidTestCompile 'com.android.support.constraint:constraint-layout:1.0.2'
    compile 'com.google.firebase:firebase-database:11.4.0'
    compile 'com.google.firebase:firebase-crash:11.4.0'
    compile 'com.google.firebase:firebase-auth:11.4.0'
    androidTestCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'

Answer 1

将此包含在您的根级（不是应用级）bulid.gradle 文件中：

allprojects {
    // ...
    repositories {
        // ...
        maven {
            url "https://maven.google.com" // Google's Maven repository
        }
    }
}

更多说明请查看Firebase Integration Guide.

Answer 2

将maven { url "https://maven.google.com" } 添加到您的根级别build.gradle 文件

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