[help wanted]Is this a network problem or the project file(s) are invalid?

[ocnyang]

[help wanted]Is this a network problem or the project file(s) are invalid?

[sysdl132]

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:3.0.1.

Caused by: org.gradle.internal.resolve.ModuleVersionResolveException: No cached version of com.android.tools.build:gradle:3.0.1 available for offline mode.

[sysdl132]

at:

task wrapper(type: Wr) {
    gradleVersion = '3.1'
}

[OCNYang]

这个问题应该是 Gradle 版本的问题。

你可以尝试改成新的写法：

wrapper {
    //configuration
}

[sysdl132]

[Help wanted]

[OCNYang]

这仅仅是一个Gradle的配置问题。 这类问题很常见，你可以先通过百度寻求答案。
比如：
Could not resolve com.android.tools.build:gradle:3.4.1

gradle 升级到 4.1 后出现的 Could not resolve com.android.tools.build:gradle:3.0.1

[sysdl132]

[sysdl132]

尝试编辑：

[sysdl132]

终于知道了：

我按了一个不该按的开关，会禁止网络