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Android

Error:Execution failed for task ':app:dexDebug'.

Im using android studio and add parse compile to my grade dependencies and i get this error, did anyone know how to solve, urgent.

and this is my grade file

apply plugin: 'com.android.application' android { compileSdkVersion 23 buildToolsVersion "23.0.1"

defaultConfig {
    applicationId "com.example.sam.myfitnesstrack"
    minSdkVersion 14
    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' compile 'com.android.support:appcompat-v7:23.1.0' compile 'com.android.support:design:23.1.0' compile 'com.parse.bolts:bolts-android:1.+' compile 'com.parse:parse-android:1.+' }