Issues with Activeandroid and SQLCipher

Hi I am developing android in which I want to do DB encryption. I am using Active-Android for sqlite DB. I tried to use ActiveAndroid-Secure http://ift.tt/1ZkeO8r. As This said I created compiled jar. And when I tried to include and run this project I shows me following error:

    Process: com.example.nileshkashid.secureactiveandroid, PID: 19057
java.lang.NoClassDefFoundError: com.activeandroid.DatabaseHelper
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:308)
at com.activeandroid.ModelInfo.scanForModelClasses(Unknown Source)
at com.activeandroid.ModelInfo.scanForModel(Unknown Source)
at com.activeandroid.ModelInfo.<init>(Unknown Source)
at com.activeandroid.Cache.initialize(Unknown Source)
at com.activeandroid.ActiveAndroid.initialize(Unknown Source)
at com.activeandroid.ActiveAndroid.initialize(Unknown Source)
at com.activeandroid.ActiveAndroid.initialize(Unknown Source)
at com.example.nileshkashid.secureactiveandroid.MainApplication.onCreate(MainApplication.java:16)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1024)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4953)
at android.app.ActivityThread.access$1500(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1424)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:155)
at android.app.ActivityThread.main(ActivityThread.java:5702)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1029)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:824)

In my build.gradle file:

    dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:support-v4:23.1.1'
    compile files('libs/ActiveAndroid.jar')
   /* compile files('libs/sqlcipher.jar')
    compile files('libs/android.jar')
    compile files('libs/commons-codec.jar')
    compile files('libs/guava-r09.jar')
    compile files('libs/native-libs-1.0.jar')*/

}

In my application class:

    package com.example.nileshkashid.secureactiveandroid;
import android.app.Application;
import com.activeandroid.ActiveAndroid;
public class MainApplication extends Application
{
    @Override
    public void onCreate() {
        super.onCreate();
        ActiveAndroid.initialize(this);
    }
}

Is there anything I am missing. Need some help. Thank you.