Gradle 'MyTestingApp' project refresh failed Error

Question

I read the answers on this topic, but I do not know why does not work, please help

I need add BoltsFramework to my to my project in Android Studio

Download BoltsFramework. Unzipped this.

Create directory libraries in my Module(app) and copy Unzip BoltsFramework here

settings.gradle

include ':app'
include ':app:libraries:Bolts-Android-master'

app/build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "testing.all.apps"
        minSdkVersion 19
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile files('libs/android-support-annotations.jar')
    compile 'com.android.support:appcompat-v7:22.1.1'
    compile project('libraries:Bolts-Android-master')
}

I get an error: Error:Configuration with name 'default' not found.

What's wrong ???