Android studio with api.ai lib - android-studio

Question

I trying to use api.ai in a android project. So I download the Android Studio 2.3.3 create a new blank project to use android 5.0 o higher so I go here and put the dependencies
compile 'ai.api:sdk:2.0.7#aar'
// api.ai SDK dependencies
compile 'com.android.support:appcompat-v7:23.2.1'
But only to put the dependencies I got the error:
Error:(9, 0) Gradle DSL method not found: 'compile()' Possible
causes:The project 'ChefBot' may be using a version of the
Android Gradle plug-in that does not contain the method (e.g.
'testCompile' was added in 1.1.0). Upgrade
plugin to version 2.3.3 and sync projectThe project
'ChefBot' may be using a version of Gradle that does not contain the
method. Open Gradle wrapper
fileThe build file may be missing a Gradle plugin. Apply Gradle plugin
How can I fix this?
this is my build.gradle:
// Top-level build file where you can add configuration options common to all sub-projects/modules.
apply plugin: 'com.android.application' // put this and don`t work
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'
compile 'ai.api:sdk:2.0.7#aar'
compile 'com.android.support:appcompat-v7:23.2.1'
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}