Класс андроид.поддержка.v7.апп.Панель действий.Обратный вызов уже добавлен в вывод. Пожалуйста, удалите дубликаты копий

Я использую Android Studio и Gradle. У меня есть проблема с V7 ActionBar. Я очищаю и строю свой проект, и эта ошибка:

Ошибка: класс android.поддержка.v7.апп.Панель действий.Обратный вызов уже добавлен в вывод. Пожалуйста, удалите дубликаты.

Не удалось выполнить задачу': MobilOnay: dexDebug'. Не удалось вызвать IncrementalTask.taskAction () на задаче ': MobilOnay: dexDebug '

Строить.gradle

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.6.3'
    }
}

Установка.gradle

include ':PageIndacator'
include ':MyProject'

MyProject / build.gradle

apply plugin: 'android'

dependencies {
    compile fileTree(dir: 'libs', include: '*.jar')
    compile project(':PageIndacator')
    compile 'com.android.support:appcompat-v7:18.0.+'
}

android {
    compileSdkVersion 19
    buildToolsVersion "19.0.0"

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }
}

PagaIndacator / build.gradle

apply plugin: 'android-library'

dependencies {
    compile 'com.android.support:support-v4:18.0.+'
}

android {
    compileSdkVersion 18
    buildToolsVersion "19.0.0"

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = ['src']
            resources.srcDirs = ['src']
            aidl.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            res.srcDirs = ['res']
            assets.srcDirs = ['assets']
        }

        // Move the tests to tests/java, tests/res, etc...
        instrumentTest.setRoot('tests')

        // Move the build types to build-types/<type>
        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
        // This moves them out of them default location under src/<type>/... which would
        // conflict with src/ being used by the main source set.
        // Adding new build types or product flavors should be accompanied
        // by a similar customization.
        debug.setRoot('build-types/debug')
        release.setRoot('build-types/release')
    }
}

MyProject/libs

android-support-v7-appcompat.jar

PageIndacator / libs пуст