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I have recently updated my android sdk version from 25 to 26. After updating the app, i'm receiving this error:

Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex

This is my gradle file:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.hago.ntr"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner
       "android.support.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support:design:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
    implementation 'com.facebook.android:facebook-android-sdk:4.5.0'
    implementation 'com.twitter.sdk.android:tweet-ui:3.1.1'
    implementation files('libs/picasso-2.5.2.jar')
    implementation files('libs/YouTubeAndroidPlayerApi.jar')
}

Please suggest any changes. I have tried clean and re-build but the error still exists. I have been trying for solution to this from last week

Please find the error i got here:

Exception is:
 org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:100)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:70)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:63)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:58)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:88)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:52)
at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ExecuteAtMostOnceTaskExecuter.execute(ExecuteAtMostOnceTaskExecuter.java:43)
at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:34)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker$1.run(DefaultTaskGraphExecuter.java:248)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:241)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:230)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.processTask(DefaultTaskPlanExecutor.java:124)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:80)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:105)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:99)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:625)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:580)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:99)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)

Caused by: java.lang.RuntimeException: java.lang.RuntimeException:    java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
at com.android.builder.dexing.DxDexArchiveMerger.mergeMonoDex(DxDexArchiveMerger.java:177)
at com.android.builder.dexing.DxDexArchiveMerger.mergeDexArchives(DxDexArchiveMerger.java:118)
at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:97)
at com.android.build.gradle.internal.transforms.ExternalLibsMergerTransform.transform(ExternalLibsMergerTransform.kt:121)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:222)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:218)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102)
at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:213)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:173)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:121)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:122)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:111)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:92)
... 27 more
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
at com.android.builder.dexing.DxDexArchiveMerger.lambda$mergeMonoDex$0(DxDexArchiveMerger.java:171)

Caused by: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
Caused by: com.android.builder.dexing.DexArchiveMergerException: Unable to merge dex
at com.android.builder.dexing.DexArchiveMergerCallable.call(DexArchiveMergerCallable.java:72)
at com.android.builder.dexing.DexArchiveMergerCallable.call(DexArchiveMergerCallable.java:36)

Caused by: com.android.dex.DexException: Multiple dex files define  Lcom/squareup/picasso/Cache;
at com.android.dx.merge.DexMerger.readSortableTypes(DexMerger.java:661)
at com.android.dx.merge.DexMerger.getSortedTypes(DexMerger.java:616)
at com.android.dx.merge.DexMerger.mergeClassDefs(DexMerger.java:598)
at com.android.dx.merge.DexMerger.mergeDexes(DexMerger.java:171)
at com.android.dx.merge.DexMerger.merge(DexMerger.java:198)
at com.android.builder.dexing.DexArchiveMergerCallable.call(DexArchiveMergerCallable.java:61)
... 1 more

Thank You in advance

Nimmagadda Gowtham
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  • I suggest that you edit the question and post the entire output of your Gradle console. Your specific problem (e.g., duplicate class definition) should be reported elsewhere in that output. For example, see [this question](https://stackoverflow.com/q/46978913/115145). – CommonsWare Oct 27 '17 at 20:21
  • `@CommonsWare` I updated my question. I attached the `screenshot` of the error. I got this `error` while trying to `run application` – Nimmagadda Gowtham Oct 27 '17 at 20:29
  • The Gradle console is a tool in Android Studio, usually docked along the bottom edge, labeled "Gradle Console". I suggest that you edit the question and post the entire output of your Gradle console. For example, see [this question](https://stackoverflow.com/q/46978913/115145), where somebody else was able to take this advice and post the entire output of the Gradle console. – CommonsWare Oct 27 '17 at 20:31
  • `@CommonsWare` I updated my question. Please find the `error stack trace`. What might be the issue ? – Nimmagadda Gowtham Oct 27 '17 at 21:12

2 Answers2

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Caused by: com.android.dex.DexException: Multiple dex files define  Lcom/squareup/picasso/Cache;

Do not use JAR files when an artifact dependency is available.

Replace:

implementation files('libs/picasso-2.5.2.jar')

with:

implementation 'com.squareup.picasso:picasso:2.5.2'

This should allow Gradle to only include one copy of the Picasso classes, whereas now you are trying to include two copies of those classes.

CommonsWare
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  • `@CommonsWare`. Thanks for your answer. Everything is working fine now. But I'm using `implementation files('libs/YouTubeAndroidPlayerApi.jar').` Should I replace it to avoid any future problems ? – Nimmagadda Gowtham Oct 27 '17 at 21:31
  • @NimmagaddaGowtham: If that is available as an artifact, use it. I have not used any YouTube APIs, so I do not know what that JAR represents. – CommonsWare Oct 27 '17 at 21:31
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Go to player settings > Project Settings > Minify, in there, there will be an option of Release and debug, set them to Gradle and try if does not work set them bith proguard and try, i am sure one solution will be fine.

next age
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