找不到 com.android.tools.build:gradle:3.0.1

当我尝试使用 gradle 包装器构建项目时，出现以下错误：

./gradlew

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':app'.
> Could not resolve all files for configuration ':app:classpath'.
   > Could not find com.android.tools.build:gradle:3.0.1.
     Searched in the following locations:
         https://maven.fabric.io/public/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.pom
         https://maven.fabric.io/public/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.jar
         https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.pom
         https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.1/gradle-3.0.1.jar
     Required by:
         project :app

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

* Get more help at https://help.gradle.org

相同的项目在 Android Studio 中构建正常。

我已经查过了this https://stackoverflow.com/questions/45188703/could-not-find-com-android-tools-build-gradle3-0-0-alpha7/4518891 and this https://stackoverflow.com/questions/47012681/could-not-find-com-android-tools-buildgradle3-0-0但我使用的是 gradle 包装器版本 4.1，添加了 google() 存储库，甚至尝试设置android.enableAapt2=false。还有其他提示吗？谢谢。

My root build.gradle file:

 // Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

My gradle-wrapper.properties file:

distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

更新：加布里埃尔是对的。我也想将存储库添加到app/build.gradle file:

...
buildscript {
    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
    }
}
...

我想我对这个声明感到困惑“要将这些库之一添加到您的构建中，请将 Google 的 Maven 存储库包含在您的顶级 build.gradle 文件中” in here https://developer.android.com/studio/build/dependencies.html.

只是想留下额外的小费。当我安装 Android Studio 时，我在某处读到建议保留此配置（带有“+”符号）

构建.gradle（项目）

dependencies {
        classpath 'com.android.tools.build:gradle:+'
        .....
        #more lines here
}

但是，我正在使用的项目使用旧版本的 gradle，并且此行始终请求最新版本。我花了一段时间才弄清楚。