I&#39;m going to add RESTful Web Service support with Spring to my Android application as described here https://spring.io/guides/gs/consuming-rest-android/.

This is top-level build.gradle config:

    // Top-level build file where you can add configuration options common to all sub-projects/modules.
    buildscript {
        repositories {
            jcenter()
        }
        dependencies {
            classpath &#39;com.android.tools.build:gradle:2.1.0&#39;
        }
    }
    
    allprojects {
        repositories {
            jcenter()
        }
    }

This is my `app/build.gradle` config:

    apply plugin: &#39;com.android.application&#39;
    
    android {
        compileSdkVersion 23
        buildToolsVersion &quot;23.0.3&quot;
    
        defaultConfig {
            applicationId &quot;com.example&quot;
            minSdkVersion 8
            targetSdkVersion 17
        }
    
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.txt&#39;
            }
        }
    
        dependencies {
            compile &#39;com.android.support:appcompat-v7:+&#39;
            compile fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
            compile &#39;org.springframework.android:spring-android-rest-template:1.0.1.RELEASE&#39;
            compile &#39;com.fasterxml.jackson.core:jackson-databind:2.3.2&#39;
        }

        packagingOptions {
            exclude &#39;META-INF/NOTICE&#39; // will not include NOTICE file
            exclude &#39;META-INF/LICENSE&#39; // will not include LICENSE file
        }
        
    }

Right now it fails with a following error:

    FAILURE: Build failed with an exception.
    
    * What went wrong:
    Execution failed for task &#39;:app:transformResourcesWithMergeJavaResForDebug&#39;.
    &gt; com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/license.txt
    	File1: user\.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
    	File2: user\.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

What am I doing wrong and how to fix it ?


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Android Gradle Duplicate files copied in APK META-INF/license.txt