title: Error : Gradle: Duplicate files during packaging of APK
body: <p>In my gradle android application when I run the application I got below error.</p>
  
  <blockquote>
    <p>Error:Gradle: duplicate files during packaging of APK /home/WorkSpace/MyProject/app/build/outputs/apk/app-debug-unaligned.apk
    Error:Gradle: Execution failed for task ':app:packageDebug'.
    Duplicate files copied in APK META-INF/license.txt
        File 1: /home/.gradle/caches/modules-2/files-2.1/org.springframework.android/spring-android-rest-template/1.0.1.RELEASE/e132d929bd181941f79b0d63edafb8a86ae6fd33/spring-android-rest-template-1.0.1.RELEASE.jar
        File 2: /home/.gradle/caches/modules-2/files-2.1/org.springframework.android/spring-android-core/1.0.1.RELEASE/e68f0e8e4b636ee30c4de58953be38d9b72a5e3b/spring-android-core-1.0.1.RELEASE.jar</p>
  </blockquote>
  
  <p>Below is my gradle file.
  build.gradle:</p>
  
  <pre><code>buildscript {
  repositories {
      jcenter()
  }
  dependencies {
      classpath 'com.android.tools.build:gradle:1.2.3'
  }
  }
   apply plugin: 'com.android.application'
  
  
   repositories {
    jcenter()
   }
  
  android {
  compileSdkVersion 23
  buildToolsVersion "23.0.2"
  
  defaultConfig {
      applicationId "com.example.myproject.app"
      minSdkVersion 9
      targetSdkVersion 23
      versionCode 1
      versionName "1.0"
  }
  
  compileOptions {
      sourceCompatibility JavaVersion.VERSION_1_6
      targetCompatibility JavaVersion.VERSION_1_6
  }
  buildTypes {
      release {
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
      }
  }
  packagingOptions {
      exclude 'META-INF/notice.txt'
  }
  }
  
   dependencies {
  compile fileTree(dir: 'libs', include: ['*.jar'])
  compile 'com.android.support:gridlayout-v7:23.2.0'
  compile 'com.android.support:appcompat-v7:23.2.0'
  compile 'com.android.support:support-v4:23.2.0'
  compile 'com.j256.ormlite:ormlite-core:4.48'
  compile 'com.j256.ormlite:ormlite-android:4.48'
  compile 'org.springframework.android:spring-android-rest-template:1.0.1.RELEASE'
  compile 'org.apache.commons:commons-io:1.3.2'
  compile 'joda-time:joda-time:2.3'
  compile 'com.fasterxml.jackson.core:jackson-databind:2.7.2'
  compile 'com.fasterxml.jackson.core:jackson-core:2.7.2'
  compile 'com.fasterxml.jackson.core:jackson-annotations:2.7.2'
  compile 'com.google.code.gson:gson:2.6.2'
  compile 'com.android.support:design:23.2.0'
  
   }
  </code></pre>
  
  <p>How I can solve this error? Please help me.</p>