Ошибка DuplicateFileException при создании Android APK

Я использую Android Studio 2.0 в Windows 7. При создании проекта Android я получаю следующую ошибку:

:app:transformResourcesWithMergeJavaResForDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK com/google/appengine/repackaged/org/apache/commons/codec/language/bm/sep_approx_spanish.txt
File1: C:\Users\USER\.gradle\caches\modules-2\files-2.1\com.google.appengine\appengine-api-1.0-sdk\1.9.28\e92c18272b555027d9ec666e7a89162f10638314\appengine-api-1.0-sdk-1.9.28.jar
File2: C:\Users\USER\.gradle\caches\modules-2\files-2.1\com.google.appengine\appengine-endpoints\1.9.28\bf2e8a74bd28e388b3487fc78a0c7adfa592fd5d\appengine-endpoints-1.9.28.jar`

Я копался в течение нескольких часов и не вижу ничего, что вызывает это. Я удалил .gradle в своем домашнем каталоге, но он все равно перестраивает его. Кто-нибудь знает, что вызывает это?

Полная выходная мощность:

Executing tasks: [:app:clean, :app:generateDebugSources, :app:mockableAndroidJar, :app:prepareDebugUnitTestDependencies, :app:generateDebugAndroidTestSources, :app:assembleDebug]

Configuration on demand is an incubating feature.
WARNING: Dependency org.apache.httpcomponents:httpclient:4.0.1 is ignored for debug as it may be conflicting with the internal version provided by Android.
     In case of problem, please repackage it with jarjar to change the class packages
WARNING: Dependency org.apache.httpcomponents:httpclient:4.0.1 is ignored for release as it may be conflicting with the internal version provided by Android.
     In case of problem, please repackage it with jarjar to change the class packages
Incremental java compilation is an incubating feature.
:app:clean
:app:preBuild UP-TO-DATE
:app:preDebugBuild UP-TO-DATE
:app:checkDebugManifest
:app:preReleaseBuild UP-TO-DATE
:backend:appengineDownloadSdk
:backend:compileJava
:backend:processResources UP-TO-DATE
:backend:classes
:backend:appengineEndpointsGetClientLibs UP-TO-DATE
:backend:appengineEndpointsExpandClientLibs UP-TO-DATE
:backend:compileEndpointsSrcJava
:backend:processEndpointsSrcResources UP-TO-DATE
:backend:endpointsSrcClasses
:backend:_appengineEndpointsAndroidArtifact UP-TO-DATE
:backend:jar UP-TO-DATE
:app:prepareComAndroidSupportAnimatedVectorDrawable2330Library
:app:prepareComAndroidSupportAppcompatV72330Library
:app:prepareComAndroidSupportSupportV42330Library
:app:prepareComAndroidSupportSupportVectorDrawable2330Library
:app:prepareComGoogleAndroidGmsPlayServicesAuth840Library
:app:prepareComGoogleAndroidGmsPlayServicesBase840Library
:app:prepareComGoogleAndroidGmsPlayServicesBasement840Library
:app:prepareComGoogleAndroidGmsPlayServicesMeasurement840Library
:app:prepareDebugDependencies
:app:compileDebugAidl
:app:compileDebugRenderscript
:app:generateDebugBuildConfig
:app:generateDebugAssets UP-TO-DATE
:app:mergeDebugAssets
:app:generateDebugResValues UP-TO-DATE
:app:processDebugGoogleServices
:app:generateDebugResources
:app:mergeDebugResources
:app:processDebugManifest
:app:processDebugResources
:app:generateDebugSources
:app:mockableAndroidJar UP-TO-DATE
:app:preDebugUnitTestBuild UP-TO-DATE
:app:prepareDebugUnitTestDependencies
:app:preDebugAndroidTestBuild UP-TO-DATE
:app:prepareDebugAndroidTestDependencies
:app:compileDebugAndroidTestAidl
:app:processDebugAndroidTestManifest
:app:compileDebugAndroidTestRenderscript
:app:generateDebugAndroidTestBuildConfig
:app:generateDebugAndroidTestAssets UP-TO-DATE
:app:mergeDebugAndroidTestAssets
:app:generateDebugAndroidTestResValues UP-TO-DATE
:app:generateDebugAndroidTestResources
:app:mergeDebugAndroidTestResources
:app:processDebugAndroidTestResources
:app:generateDebugAndroidTestSources
:app:compileDebugJavaWithJavac
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.

:app:compileDebugNdk UP-TO-DATE
:app:compileDebugSources
:app:buildInfoDebugLoader
:app:transformClassesWithExtractJarsForDebug
:app:transformClassesWithInstantRunVerifierForDebug
:app:transformClassesWithJavaResourcesVerifierForDebug UP-TO-DATE
:app:mergeDebugJniLibFolders
:app:transformNative_libsWithMergeJniLibsForDebug
:app:processDebugJavaRes UP-TO-DATE
:app:transformResourcesWithMergeJavaResForDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
> com.android.build.api.transform.TransformException:     com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK com/google/appengine/repackaged/org/apache/commons/codec/language/bm/sep_approx_spanish.txt
File1: C:\Users\USER\.gradle\caches\modules-2\files-2.1\com.google.appengine\appengine-api-1.0-sdk\1.9.28\e92c18272b555027d9ec666e7a89162f10638314\appengine-api-1.0-sdk-1.9.28.jar
File2: C:\Users\USER\.gradle\caches\modules-2\files-2.1\com.google.appengine\appengine-endpoints\1.9.28\bf2e8a74bd28e388b3487fc78a0c7adfa592fd5d\appengine-endpoints-1.9.28.jar


* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 15.364 secs

Из того, что я могу сказать, это конфликт между двумя зависимостями:

dependencies {
  appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.28'
  compile 'com.google.appengine:appengine-endpoints:1.9.28'
  compile 'com.google.appengine:appengine-endpoints-deps:1.9.28'
  compile 'javax.servlet:servlet-api:2.5'
  compile 'com.google.http-client:google-http-client-jackson2:1.20.0'
  compile 'com.google.http-client:google-http-client-gson:1.19.0'
}

Я думаю, что это две зависимости:

appengineSdk 'com.google.appengine:appengine-java-sdk:1.9.28'
compile 'com.google.appengine:appengine-endpoints:1.9.28'
compile 'com.google.appengine:appengine-endpoints-deps:1.9.28'

Я не могу удалить ни одного из них, так как это вызывает ошибки компиляции в модуле сервера. Похоже, однако, что эти две зависимости почти идентичны. Должны ли они оба быть там? Любой совет приветствуется!

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