Android studio 2.1.3-无效的Android插件

我已经将Android Studio更新为2.1.3版本

这是我的主要build.gradle文件：

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        maven { url "http://dl.bintray.com/populov/maven" }
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.3'
    }
}

allprojects {
    repositories {
        mavenCentral()
        jcenter()
        maven {
            url 'https://github.com/suckgamony/RapidDecoder/raw/master/repository'
        }
    }
}

task wrapper(type: Wrapper) {
    gradleVersion = '2.14.1' //version required
}

在gradle-wrapper.properties中，我放了：

distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip

它仍然说Android插件无法识别，如下所示：

Plugin "SDK Updater" was not loaded: required plugin "org.jetbrains.android" not installed.

你知道怎么修吗