Android Studio 3.0.1错误:Gradle项目同步失败.基本功能(例如，编辑，调试)将无法正常运行 [英] Android Studio 3.0.1 Error: Gradle project sync failed. Basic functionality (e.g. editing, debugging) will not work properly

问题描述

我已经安装了Android Studio 3.0.1，并尝试通过选择一个空活动来构建第一个应用程序，但是我得到了以下消息:

I've installed Android studio 3.0.1 and tried to build very first app with choosing an empty activity, but I've get the message:

Gradle项目同步失败.基本功能(例如编辑，调试)将无法正常工作

Gradle project sync failed. Basic functionality (e.g. editing, debugging) will not work properly

和类似这样的错误消息:

and error message like this:

无法解析':app @ releaseUnitTest/compileClasspath'的依赖关系:无法解析com.android.support:appcompat-v7:26.1.0. 无法解析com.android.support:appcompat-v7:26.1.0. 要求者: 专案:app 无法解析com.android.support:appcompat-v7:26.1.0. 无法解析POM https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7/26.1.0/appcompat-v7-26.1.0.pom 已经看到的文档类型.

Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not resolve com.android.support:appcompat-v7:26.1.0. Could not resolve com.android.support:appcompat-v7:26.1.0. Required by: project :app Could not resolve com.android.support:appcompat-v7:26.1.0. Could not parse POM https://dl.google.com/dl/android/maven2/com/android/support/appcompat-v7/26.1.0/appcompat-v7-26.1.0.pom Already seen doctype.

这是日志消息的第一部分:

and this is first part of log message is:

2018-01-03 11:11:12,671 [d线程8]警告-ect.sync.idea.ProjectSetUpTask-已经看到的doctype. 有关更多详细信息，请查阅IDE日志(帮助" |显示日志") 2018-01-03 11:11:12,671 [d线程8]信息-e.project.sync.GradleSyncState-Gradle同步失败:已经看到doctype.

2018-01-03 11:11:12,671 [d thread 8] WARN - ect.sync.idea.ProjectSetUpTask - Already seen doctype. Consult IDE log for more details (Help | Show Log) 2018-01-03 11:11:12,671 [d thread 8] INFO - e.project.sync.GradleSyncState - Gradle sync failed: Already seen doctype.

我尝试了一些建议的解决方案，例如更改gradle版本，更新Kotlin插件(！)等，但是它们没有用.

I've tried some suggested solution like changing gradle version, update Kotlin plugin(!) and so, but they didn't work.

有解决方案吗?

推荐答案

由我的连接引起的问题.我需要设置代理以下载一些组件.

The problem caused by my connection. I needed to set proxy to download some components.

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