android studio打包错误

apply plugin: "com.android.application"
android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"
    sourceSets.main {
        jniLibs.srcDirs = ["libs"]
    }
    defaultConfig {
        applicationId "com.asd.ss"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 3
        versionName "1.1"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
        }
    }
}
dependencies {
    compile fileTree(dir: "libs", include: ["*.jar"])
    compile project(":pulltorefresh")
    compile files("libs/gson-2.3.jar")
    compile files("libs/httpmime-4.1.3.jar")
    compile files("libs/jpush-android-2.1.3.jar")
    compile files("libs/SocialSDK_QQZone_1.jar")
    compile files("libs/SocialSDK_QQZone_2.jar")
    compile files("libs/SocialSDK_QQZone_3.jar")
    compile files("libs/SocialSDK_Sina.jar")
    compile files("libs/SocialSDK_WeiXin_1.jar")
    compile files("libs/SocialSDK_WeiXin_2.jar")
    compile files("libs/umeng_social_sdk.jar")
    compile files("libs/universal-image-loader-1.9.4.jar")
    testCompile "junit:junit:4.12"
    compile "com.squareup.okhttp:okhttp:2.5.0"
    compile "com.squareup.okio:okio:1.5.0"
    compile "com.orhanobut:logger:1.11"
    compile "org.litepal.android:core:1.2.1"
    compile "com.google.android.gms:play-services:9.2.0"
    compile "com.google.firebase:firebase-core:9.0.2"
    compile "com.google.android.gms:play-services-ads:9.2.0"
    compile "com.google.android.gms:play-services-auth:9.2.0"
    compile "com.google.android.gms:play-services-gcm:9.2.0"
}
apply plugin: "com.google.gms.google-services"