找不到com.android.tools.build:gradle:4.0.1或4.0.0
错误：
找不到com.android.tools.build:gradle:4.0.1。在以下位置搜索：
Could not find com.android.tools.build:gradle:4.0.1. Searched in the following locations:
https://jcenter.bintray.com/com/android/tools/build/gradle/4.0.1/gradle-4.0.1.pom
https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/4.0.1/gradle-4.0.1.pom
必填项：项目：打开文件
Required by: project : Open File
***看起来google（）和jcenter（）不能按预期工作。***
*** looks like google() and jcenter() are not working as expected.***
我从android studio 2.3.3迁移到4.0.1，此错误...
I migrated from android studio 2.3.3 to 4.0.1 and this error...
我的问题是什么？？？？请告诉我是否需要更多信息。
what is my problem???? plz tell me if you need more information .
感谢您的回答：）
已解决！
转到->档案|设置|外观行为|系统设置| HTTP代理
并选择->手动代理配置。设置主机名：fodev.org
并设置端口号：8118。现在您必须找到gradle.properties文件。必须在以下位置：
Windows：C：\Users\YOURUSERNAME.gradle\gradle.properties或对于
Linux：〜/ .gradle / gradle.properties。
（如果不存在），自己创建。并复制以下内容：
go to -> File | Settings | Appearance & Behavior | System Settings | HTTP Proxy, and choose -> manual proxy configuration. set host name: fodev.org and set port number: 8118 . now you must find gradle.properties file. that must be in: Windows: C:\Users\YOURUSERNAME.gradle\gradle.properties OR for Linux: ~/.gradle/gradle.properties . if does't exist, create that yourself. and copy this :
systemProp.http.proxyHost=fodev.org
systemProp.http.proxyPort=8118
systemProp.http.nonProxyHosts=*.jitpack.io, *.maven.org
systemProp.https.proxyHost=fodev.org
systemProp.https.proxyPort=8118
systemProp.https.nonProxyHosts=*.jitpack.io, *.maven.org
现在您可以同步项目了。
now you can sync project.
重要提示：安装build.gradle 4.0.1（或每个版本）后，将此设置恢复为之前的状态并删除代码
IMPORTANT : after install build.gradle 4.0.1 (or every version), back this settings to before and remove codes