diff --git a/.idea/misc.xml b/.idea/misc.xml
index 616c20a..7870a51 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -136,7 +136,7 @@
       </profile-state>
     </entry>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/com/oxigen/realmexpressionsproject/MainActivity.java b/app/src/main/java/com/oxigen/realmexpressionsproject/MainActivity.java
index fbdd4e0..f1a1b54 100644
--- a/app/src/main/java/com/oxigen/realmexpressionsproject/MainActivity.java
+++ b/app/src/main/java/com/oxigen/realmexpressionsproject/MainActivity.java
@@ -14,6 +14,8 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        Realm.init(this);
+
     }
 
     /**
@@ -25,7 +27,6 @@ private void testRealmExpressions(){
         // Build with default objects and native classes.
         //RealmExpression.addEnvironmentObject("user", KUser.getCurrentUser(), false);
 
-
         // Build...
         RealmExpression engine = new RealmExpression.Builder()
                 //.addExpression("B1", "@REXP($user.@getFirstName())")
diff --git a/expressions/build.gradle b/expressions/build.gradle
index 0c20955..364a77b 100644
--- a/expressions/build.gradle
+++ b/expressions/build.gradle
@@ -1,5 +1,7 @@
 apply plugin: 'com.android.library'
 apply plugin: 'realm-android'
+apply plugin: 'com.github.dcendents.android-maven'
+group = 'com.github.javierpe'
 
 android {
     compileSdkVersion 26
@@ -15,7 +17,6 @@ android {
 
         multiDexEnabled true
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-
     }
 
     buildTypes {
@@ -29,9 +30,11 @@ android {
 buildscript {
     repositories {
         jcenter()
+        mavenCentral()
     }
     dependencies {
         classpath "io.realm:realm-gradle-plugin:4.2.0"
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.0'
     }
 }