Android studio: Gradle build finished with error

I have been using Android Studio and I am getting this error when trying to build.I can't able to proceed. This is the error in Android Studio: ``` Executing tasks: [:libraries:facebook:generateDebugSources, :library:generateDebugSources, :volley:generateDebugSources] Configuration on demand is an incubating feature. WARNING [Project: :volley] "testPackageName" is deprecated (and will soon stop working); change to "testApplicationId" instead :libraries:facebook:preBuild :libraries:facebook:preDebugBuild :libraries:facebook:checkDebugManifest :libraries:facebook:prepareDebugDependencies :libraries:facebook:compileDebugAidl UP-TO-DATE :libraries:facebook:compileDebugRenderscript UP-TO-DATE :libraries:facebook:generateDebugBuildConfig UP-TO-DATE :libraries:facebook:generateDebugAssets UP-TO-DATE :libraries:facebook:mergeDebugAssets UP-TO-DATE :libraries:facebook:generateDebugResValues UP-TO-DATE :libraries:facebook:generateDebugResources UP-TO-DATE :libraries:facebook:packageDebugResources UP-TO-DATE :libraries:facebook:processDebugManifest UP-TO-DATE :libraries:facebook:processDebugResources UP-TO-DATE :libraries:facebook:generateDebugSources UP-TO-DATE :library:preBuild :library:preDebugBuild :library:checkDebugManifest :library:prepareDebugDependencies :library:compileDebugAidl UP-TO-DATE :library:compileDebugRenderscript UP-TO-DATE :library:generateDebugBuildConfig UP-TO-DATE :library:generateDebugAssets UP-TO-DATE :library:mergeDebugAssets UP-TO-DATE :library:generateDebugResValues UP-TO-DATE :library:generateDebugResources UP-TO-DATE :library:packageDebugResources UP-TO-DATE :library:processDebugManifest UP-TO-DATE :library:processDebugResources UP-TO-DATE :library:generateDebugSources UP-TO-DATE :volley:preBuild :volley:preDebugBuild :volley:checkDebugManifest :volley:prepareDebugDependencies :volley:compileDebugAidl UP-TO-DATE :volley:compileDebugRenderscript UP-TO-DATE :volley:generateDebugBuildConfig UP-TO-DATE :volley:generateDebugAssets UP-TO-DATE :volley:mergeDebugAssets UP-TO-DATE :volley:generateDebugResValues UP-TO-DATE :volley:generateDebugResources UP-TO-DATE :volley:packageDebugResources UP-TO-DATE :volley:processDebugManifest UP-TO-DATE :volley:processDebugResources UP-TO-DATE :volley:generateDebugSources UP-TO-DATE ``` BUILD FAILED Total time: 2 mins 7.494 secs This is my app gradle : build.gradle : ``` apply plugin: 'android' android { compileSdkVersion 19 buildToolsVersion '19.1.0' defaultConfig { minSdkVersion 11 targetSdkVersion 19 versionCode 1 versionName '1.0' } signingConfigs { release { } } buildTypes { release { signingConfig signingConfigs.release } } packagingOptions { exclude 'META-INF/DEPENDENCIES' exclude 'META-INF/NOTICE' exclude 'META-INF/LICENSE' exclude 'META-INF/LICENSE.txt' exclude 'META-INF/NOTICE.txt' exclude 'META-INF/ASL2.0' } productFlavors { } } dependencies { compile 'com.android.support:support-v4:19.1.0' compile 'com.google.android.gms:play-services:5.0.77' compile 'com.android.support:appcompat-v7:+' compile 'com.makeramen:roundedimageview:1.2.4' compile 'com.nineoldandroids:library:2.4.0+' compile project(':libraries:facebook') compile project(':library') compile project(':stripe') compile project(':volley') compile fileTree(dir: 'libs', include: ['*.jar']) compile files('libs/activation.jar') compile files('libs/mail.jar') compile files('libs/iprint.jar') } ```