无法解决:play-services-tasks

问题描述

近 48 小时以来，我一直在尝试将 FCM 添加到我的 android 应用程序中.我在 Android Studio 上一直因这两个错误而失败.我已经尝试了此 中的所有解决方案发布.我仍然无法修复它.

I have been tryong to add FCM to my android application for almost 48 hours now. I am keep on failing with these two errors on Android Studio. I have tried all the solutions in this post. Still I couldn't fix it.

我希望将 Firebase 云消息传递集成到我的应用中.所以我做了以下事情.

I want firebase cloud messaging to be integrated in my app. So I did the followings.

• 在 Firebase 控制台中创建了一个应用
• 包含 .json 配置文件
• 添加了 SDK
• 实现 'com.google.firebase:firebase-messaging:17.0.0'(在应用级 gradle 中)
• apply plugin: 'com.google.gms.google-services' (最后在应用级 gradle 文件中行)
• 类路径 'com.google.gms:google-services:4.0.1'(在项目级别的gradle中)
• 添加了存储库google()(在项目级gradle中)

• Created an app in the firebase console
• Included the .json config file
• Added the SDK
• implementation 'com.google.firebase:firebase-messaging:17.0.0' (In the app level gradle)
• apply plugin: 'com.google.gms.google-services' (In the app level gradle file last line)
• classpath 'com.google.gms:google-services:4.0.1' (In the project level gradle)
• Added the repository google() (In the project level gradle)

我已经尝试过多次同步，但我不断收到错误

I have tried syncing many times and I keep on getting the error

无法解决:play-services-tasks 打开文件

Failed to resolve: play-services-tasks Open File

无法解决:play-services-basement 打开文件

Failed to resolve: play-services-basement Open File

附带说明，我使用的是 gradle 插件 3.1.3

On a side note, I am using the gradle plugin 3.1.3

    classpath 'com.android.tools.build:gradle:3.1.3'

请有人帮我一下.

推荐答案

jcenter() 有时充当某些 Google 依赖项的镜像存储库.在 Gradle 构建过程中，它会在 repositories {...} 块中列出的第一个条目中查找依赖项.因此，如果此存储库损坏或任何依赖项发生不良情况，该过程将失败.

jcenter() sometimes act as a mirror repository for some Google dependencies. During Gradle building process, it looks for dependencies in the first entry listed in your repositories {...} block. So if this repository is broken or something bad occurs with any dependency the process will fail.

这里有推荐的仓库列表顺序

Here there is a recommended order for repository list

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

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