无法解析com.google.firebase：firebase-core：10.2.6

我正在尝试为我的应用添加Firebase支持

我将 classpath 'com.google.gms:google-services:3.1.0' 添加到项目级gradle文件并添加

compile 'com.google.firebase:firebase-auth:10.2.6'

和

apply plugin: 'com.google.gms.google-services'

当我同步我得到

当我尝试清理我得到的项目时

Error:A problem occurred configuring project ':app'.

无法解析配置'：app：_debugCompile'的所有依赖项 . 找不到com.google.firebase：firebase-auth：10.2.6 . 在以下位置搜索：file：/ C：/ Program Files / Android / Android Studio / gradle / m2repository / com / google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.pom文件：/ C：/ Program Files / Android / Android Studio / gradle / m2repository / com / google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.jar https://jcenter.bintray.com/com/ google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.pom https://jcenter.bintray.com/com/google/firebase/firebase-auth/10.2.6/firebase-auth-10.2 .6.jar文件：/ C：/Users/Adi/sdk/extras/android/m2repository/com/google/firebase/firebase-auth/10.2.6/firebase-auth-10.2.6.pom文件：/ C： /Users/Adi/sdk/extras/android/m2repository/com/google/firebase/firebase-auth/10.2.6/firebase-auth-10.2.6.jar文件：/ C：/ Users / Adi / sdk / extras / google / m2repository / com / google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.pom文件：/ C：/ Users / Adi / sdk / extras / google / m2repository / com / google / firebase /firebase-auth/10.2.6/firebase-auth-10.2.6.jar无法找到com.google.firebase：firebase-c矿石：10.2.6 . 在以下位置搜索：file：/ C：/ Program Files / Android / Android Studio / gradle / m2repository / com / google / firebase / firebase-core / 10.2.6 / firebase-core-10.2.6.pom文件：/ C：/ Program Files / Android / Android Studio / gradle / m2repository / com / google / firebase / firebase-core / 10.2.6 / firebase-core-10.2.6.jar https://jcenter.bintray.com/com/ google / firebase / firebase-core / 10.2.6 / firebase-core-10.2.6.pom https://jcenter.bintray.com/com/google/firebase/firebase-core/10.2.6/firebase-core-10.2 .6.jar文件：/ C：/Users/Adi/sdk/extras/android/m2repository/com/google/firebase/firebase-core/10.2.6/firebase-core-10.2.6.pom文件：/ C： /Users/Adi/sdk/extras/android/m2repository/com/google/firebase/firebase-core/10.2.6/firebase-core-10.2.6.jar文件：/ C：/ Users / Adi / sdk / extras / google / m2repository / com / google / firebase / firebase-core / 10.2.6 / firebase-core-10.2.6.pom文件：/ C：/ Users / Adi / sdk / extras / google / m2repository / com / google / firebase /firebase-core/10.2.6/firebase-core-10.2.6.jar找不到com.google.firebase：firebase-a UTH：10.2.6 . 在以下位置搜索：file：/ C：/ Program Files / Android / Android Studio / gradle / m2repository / com / google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.pom文件：/ C：/ Program Files / Android / Android Studio / gradle / m2repository / com / google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.jar https://jcenter.bintray.com/com/ google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.pom https://jcenter.bintray.com/com/google/firebase/firebase-auth/10.2.6/firebase-auth-10.2 .6.jar文件：/ C：/Users/Adi/sdk/extras/android/m2repository/com/google/firebase/firebase-auth/10.2.6/firebase-auth-10.2.6.pom文件：/ C： /Users/Adi/sdk/extras/android/m2repository/com/google/firebase/firebase-auth/10.2.6/firebase-auth-10.2.6.jar文件：/ C：/ Users / Adi / sdk / extras / google / m2repository / com / google / firebase / firebase-auth / 10.2.6 / firebase-auth-10.2.6.pom文件：/ C：/ Users / Adi / sdk / extras / google / m2repository / com / google / firebase /firebase-auth/10.2.6/firebase-auth-10.2.6.jar

我已将谷歌播放服务更新到最新版本，它仍然无法正常工作 . 我尝试了无效缓存和重启..

我该如何解决这个问题？谢谢你的帮助 .