Could not find com.android.tools.build:gradle:3.0.1.

升级Android Studio 3.0.1版本之后运行RN项目出现如下错误

A problem occurred configuring root project 'DemosAndroid'.

> Could not resolve all files for configuration ':classpath'.

   > Could not find com.android.tools.build:gradle:3.0.1.

     Searched in the following locations:

         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 :

* 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

解决方法：在project的builde.gradle做如下操作分别加上google()

buildscript {

repositories {

    google()

    ....

}

dependencies {

    classpath 'com.android.tools.build:gradle:3.0.0'

    // NOTE: Do not place your application dependencies here; they belong

    // in the individual module build.gradle files

}

}

allprojects {

    repositories {

        google()

        .....

    }

}