Gson: cannot compile project due to ExclusionStrategy error

Question

I'm taking over a project and it doesn't compile. When I build it, i got the following error:

Program type already present: com.google.gson.ExclusionStrategy

As far as i've seen, no ExclusionStrategy is used within my project. I don't really know how to figure out a solution...

Below is the full error stack.

org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':sample-mpa-ui:transformDexArchiveWithExternalLibsDexMergerForMyProjectModelDebug'. 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.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51) at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62) at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54) at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:60) at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:97) at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:87) 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$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328) at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110) at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$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:123) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:79) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:104) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:98) at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:626) at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:581) at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:98) at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63) at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\0.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\1.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\2.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\3.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\4.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\5.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\6.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\7.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\8.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\9.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\10.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\11.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\12.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\13.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\14.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\15.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\16.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\17.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\18.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\19.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\20.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\21.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\22.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\23.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\24.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\25.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\26.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\27.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\28.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\29.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\30.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\31.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\32.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\33.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\34.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\35.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\36.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\37.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\38.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\39.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\40.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\41.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\42.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\43.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\44.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\45.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\46.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\47.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\48.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\49.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\50.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\51.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\52.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\53.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\54.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\55.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\56.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\57.jar at com.android.builder.profile.Recorder$Block.handleException(Recorder.java:55) at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:104) at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:212) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73) at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:46) at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:39) at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:26) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:121) at org.gradle.internal.progress.DefaultBuildOperationExecutor$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:199) at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:110) at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:92) ... 32 more Caused by: com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\0.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\1.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\2.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\3.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\4.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\5.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\6.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\7.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\8.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\9.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\10.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\11.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\12.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\13.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\14.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\15.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\16.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\17.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\18.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\19.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\20.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\21.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\22.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\23.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\24.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\25.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\26.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\27.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\28.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\29.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\30.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\31.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\32.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\33.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\34.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\35.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\36.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\37.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\38.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\39.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\40.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\41.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\42.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\43.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\44.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\45.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\46.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\47.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\48.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\49.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\50.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\51.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\52.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\53.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\54.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\55.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\56.jar, C:\Sources\MyProject\build\intermediates\transforms\dexBuilder\MyProjectModel\debug\57.jar at com.android.builder.dexing.D8DexArchiveMerger.getExceptionToRethrow(D8DexArchiveMerger.java:124) at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:109) at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:101) at com.android.build.gradle.internal.transforms.ExternalLibsMergerTransform.transform(ExternalLibsMergerTransform.kt:123) at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:221) at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:217) at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102) ... 48 more Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete at com.android.tools.r8.utils.ExceptionUtils.withCompilationHandler(ExceptionUtils.java:76) at com.android.tools.r8.utils.ExceptionUtils.withD8CompilationHandler(ExceptionUtils.java:45) at com.android.tools.r8.D8.run(D8.java:88) at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:107) ... 53 more Caused by: com.android.tools.r8.utils.AbortException at com.android.tools.r8.utils.Reporter.failIfPendingErrors(Reporter.java:77) at com.android.tools.r8.utils.Reporter.fatalError(Reporter.java:58) at com.android.tools.r8.utils.ExceptionUtils.withCompilationHandler(ExceptionUtils.java:67) ... 56 more

Below is the project's build.gradle apply plugin: 'com.android.application'

def app_version = 'v0.0.1'
def version = '0.0.1

android {
    compileSdkVersion project.ext.globalCompileSdkVersion
    buildToolsVersion project.ext.globalBuildToolsVersion

    defaultConfig {
        applicationId "com.sample.companyname"

        minSdkVersion project.ext.globalMinSdkVersion
        targetSdkVersion project.ext.globalTargetSdkVersion

        versionCode 74
        versionName app_version

        multiDexEnabled true
    }

    compileOptions {
        //noinspection GroovyAssignabilityCheck
        sourceCompatibility JavaVersion.VERSION_1_7
        //noinspection GroovyAssignabilityCheck
        targetCompatibility JavaVersion.VERSION_1_7
    }

    // This has been added to deal with a duplicate file when using
    // apache commons-codec and commons-validators
    packagingOptions {
        pickFirst 'META-INF/DEPENDENCIES.txt'
        pickFirst 'META-INF/DEPENDENCIES'
        pickFirst 'META-INF/dependencies.txt'
        pickFirst 'META-INF/LICENSE.txt'
        pickFirst 'META-INF/LICENSE'
        pickFirst 'META-INF/license.txt'
        pickFirst 'META-INF/LGPL2.1'
        pickFirst 'META-INF/NOTICE.txt'
        pickFirst 'META-INF/NOTICE'
        pickFirst 'META-INF/notice.txt'
    }

    signingConfigs {
        debug {
            //noinspection GroovyAssignabilityCheck
            storeFile file('../keystore/product.keystore')
            storePassword "dont"
            keyAlias "even"
            keyPassword "try"
        }
        release {
            //noinspection GroovyAssignabilityCheck
            storeFile file('../keystore/product.keystore')
            storePassword "dont"
            keyAlias "even"
            keyPassword "try"
        }
    }

    //noinspection GroovyAssignabilityCheck
    buildTypes {
        debug {
            applicationIdSuffix ".debug"
            debuggable true
        }
        release {
            debuggable false
            minifyEnabled true
            shrinkResources false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
    }

    flavorDimensions 'tier'

    productFlavors {
        sampleFlavor1 {
            dimension 'tier'
        }
        sampleFlavor2 {
            dimension 'tier'
        }
        sampleFlavor3 {
            dimension 'tier'
        }
        sampleFlavor4 {
            dimension 'tier'
        }
    }

    sourceSets {
        main.java.srcDirs = ['src/main/java']
    }

    lintOptions {
        abortOnError false
    }
}

//noinspection GroovyAssignabilityCheck
dependencies {
    // Project dependencies
    implementation project(':module-1')
    implementation project(':module-2')
    implementation project(':module-3')
    implementation project(':module-4')
    implementation project(':module-5')

    implementation(name: 'lib-a-2.1.1-release', ext: 'aar')
    implementation(name: 'lib-b-2.1.1-release', ext: 'aar')
    implementation(name: 'lib-c-2.1.1-release', ext: 'aar')
    implementation(name: 'lib-d-2.1.1-release', ext: 'aar')

    implementation 'com.google.code.gson:gson:2.8.0'

    implementation 'com.nostra13.universalimageloader:universal-image-loader:1.9.3'
    implementation('commons-codec:commons-codec:1.10')
    implementation('commons-validator:commons-validator:1.4.0') {
        exclude group: 'commons-logging', module: 'commons-logging'
        exclude group: 'commons-digester', module: 'commons-digester'
        exclude group: 'commons-beanutils', module: 'commons-beanutils'
        exclude group: 'commons-collections', module: 'commons-collections'
    }

    implementation "com.google.android.gms:play-services-nearby:$play_services_version"
    implementation "com.google.android.gms:play-services-gcm:$play_services_version"

    implementation 'com.android.support:multidex:1.0.3'
    implementation "com.android.support:appcompat-v7:$support_version"
    implementation "com.android.support:design:$support_version"
    implementation "com.android.support:support-annotations:$support_version"
    implementation "com.android.support.constraint:constraint-layout:1.0.2"

    // Test dependencies
    androidTestImplementation 'com.squareup.okhttp:mockwebserver:2.3.0'
    androidTestImplementation 'com.jayway.android.robotium:robotium-solo:5.2.1'

    testImplementation 'junit:junit:4.12'
}

this maybe happened whilst adding new library to project which is already using Gson? — Mohammed Farhan, Apr 16 '18 at 11:17
by using "implementation", shouldn't it avoid export its content while packaging ? — Jean-Bernard Collet, Apr 16 '18 at 11:19
try compiling by adding this version of Gson `implementation 'com.google.code.gson:gson:2.8.2'` — Mohammed Farhan, Apr 16 '18 at 12:28
Thanks @MohammedFarhan , worked for me in a similar problem! — auspicious99, Jul 21 '18 at 17:46
@Jean-BernardCollet how can I resolve this problem. Please suggest. — mukesh, Sep 12 '18 at 12:51

score 7 · Answer 1 · answered Apr 17 '18 at 10:01

7

Check if you have any gson jar in your lib folder. I had the same problem and gson-2.2.4.jar in my lib directory. Removing it worked for me.

answered Apr 17 '18 at 10:01

LionErez

124
4

InsaneCat · Answer 2 · 2018-04-16T10:16:23.787

-1

Into your app level Build.gradle put a code :-

android {
    defaultConfig {
       multiDexEnabled true
    }
}

See How to implement multiDex Hope this helps you.

edited Apr 16 '18 at 10:16

answered Apr 16 '18 at 10:06

InsaneCat

2,115
5
21
40

@Jean-BernardCollet see updated answer link otherwise posted your main build.gradel here. – InsaneCat Apr 16 '18 at 10:16
Again, I did it (on my main project and on all modules), but it did not change anything :/ – Jean-Bernard Collet Apr 16 '18 at 10:33
Share your Build.gradle fiel here @Jean-BernardCollet – InsaneCat Apr 16 '18 at 10:43
Done on the bottom of the post – Jean-Bernard Collet Apr 17 '18 at 08:32

Gson: cannot compile project due to ExclusionStrategy error

2 Answers2