First of all, I know there are a lot of subjects about this problems, but I still can't fix it.

I'm just trying to customize aviary sdk by following the guide here : <https://developers.aviary.com/docs/android/setup-guide#> (section 4.2, not 4.1)

here are my **root gradle** files :

**build.gradle**

```
buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.2'

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

allprojects {
    repositories {
        jcenter()
    }
}

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

```

settings.gradle :

```
include ':app', ':Aviary-Android-Sample-App'

```

here is my **app build.gradle** file :

```
apply plugin: 'com.android.application'

android {
    compileSdkVersion 20
    buildToolsVersion "20.0.0"

    defaultConfig {
        applicationId "com.example.agaze.myapplication"
        minSdkVersion 10
        targetSdkVersion 20
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:20.0.0'
    compile project(':Aviary-Android-Sample-App')
}

```

Here my files tree: 

![My files tree](https://i.stack.imgur.com/OTJSY.png)

Thanks in advance for your tips.

Antonin