Made it work

app/build.gradle

@@ -1,20 +1,17 @@
-apply plugin: 'com.android.application'
-apply plugin: 'jp.leafytree.android-scala'
-
 buildscript {
     repositories {
         mavenCentral()
     }
     dependencies {
+        classpath "com.android.tools.build:gradle:0.14.4"
         classpath "jp.leafytree.gradle:gradle-android-scala-plugin:1.3.1"
     }
 }
-
-dependencies {
-    compile "com.android.support:support-v4:21.0.0"
-    compile "org.scala-lang:scala-library:2.11.4"
-    compile "org.msgpack:msgpack-scala_2.11:0.6.11"
+repositories {
+  jcenter()
 }
+apply plugin: 'com.android.application'
+apply plugin: 'jp.leafytree.android-scala'
 
 android {
     compileSdkVersion 21
@@ -44,7 +41,7 @@ android {
 
     buildTypes {
         debug {
-            minifyEnabled true
+//            minifyEnabled true
             proguardFile file("proguard-rules.pro")
             applicationIdSuffix ".debug"
         }
@@ -62,3 +59,16 @@ android {
         exclude 'META-INF/NOTICE'
     }
 }
+
+dependencies {
+    compile "com.android.support:support-v4:21.+"
+    provided "org.scala-lang:scala-library:2.11.4"
+    compile("org.msgpack:msgpack-scala_2.11:0.6.11") {
+      transitive = false;
+    }
+    compile('org.msgpack:msgpack:0.6.11'){
+      transitive = false;
+    }
+}
+
+

app/src/main/AndroidManifest.xml

@@ -8,13 +8,15 @@
     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
 
     <uses-feature android:name="android.hardware.bluetooth" android:required="true" />
-
     <application
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme" >
 
+        <uses-library android:name="s1"/>
+        <uses-library android:name="s2"/>
+        <uses-library android:name="s3"/>   
         <activity
             android:name=".activities.MainActivity"
             android:label="@string/app_name"