Github找的项目，通过地址克隆，或者下载到本地都出现这个问题，

在这之前没有这个问题

学校断了一次网后，或者我尝试配置AS的国内镜像（未成功）后，

就出现了这个问题，

Connection timed out: connect

具体：

org.gradle.api.ProjectConfigurationException: A problem occurred configuring root project 'WanNengAdapter'

Caused by: org.gradle.api.internal.artifacts.ivyservice.DefaultLenientConfiguration$ArtifactResolveException: Could not resolve all files for configuration ':classpath'

Caused by: org.gradle.internal.resolve.ModuleVersionResolveException: Could not resolve com.android.tools.build:gradle:4.4

Caused by: org.gradle.api.resources.ResourceException: Could not get resource 'https://jcenter.bintray.com/com/android/tools/build/gradle/4.4/gradle-4.4.pom'

Caused by: org.gradle.internal.resource.transport.http.HttpRequestException: Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/4.4/gradle-4.4.pom'

Caused by: org.apache.http.conn.HttpHostConnectException: Connect to mirrors.dormforce.net:80 [mirrors.dormforce.net/202.115.22.208] failed: Connection timed out: connect