Android Studio 2.0:找不到Gradle DSL方法:“classpath()”错误(27,0)

首先,我已经阅读了所有其他解决方案的帖子,到目前为止,没有一篇有效。 我正在使用Android Studio 2.0

错误: 错误:(27,0)找不到Gradle DSL方法:“classpath()” 可能的原因:

这里是构建。gradle(应用程序):

     apply plugin: 'com.android.application'

          android
          {
            compileSdkVersion 23
            buildToolsVersion "23.0.2"

        defaultConfig {
            applicationId "com.example.kandarp.food"
            minSdkVersion 21
            targetSdkVersion 23
            versionCode 1
            versionName "1.0"
          }
           buildTypes {
            release {
                minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'),         'proguard-rules.pro'
              }
             }
         }

                  dependencies {
        compile fileTree(dir: 'libs', include: ['*.jar'])
        testCompile 'junit:junit:4.12'
        classpath 'com.google.gms:google-services:2.0.0-alpha6'
        compile 'com.android.support:appcompat-v7:23.1.1'
        compile 'com.android.support:design:23.1.1'
        compile 'com.google.android.gms:play-services-analytics:8.4.0'
        compile 'com.google.android.gms:play-services-ads:8.4.0'
            }

             apply plugin: 'com.google.gms.google-services'

这里是构建。梯度(顶层):

             buildscript {


            repositories {
                jcenter()
            }

                dependencies {

                classpath 'com.android.tools.build:gradle:2.0.0'

            }



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


            apply plugin: 'project-report'
            apply plugin: 'application'

如果有人能指出错误是什么,那就太好了