I'm getting this error each time I build an .apk. ..........
"
CommandInvokationFailure: Gradle build failed.
C:\Program Files\2018.4.2f1\Editor\Data\PlaybackEngines\AndroidPlayer/Tools\OpenJDK\Windows\bin\java.exe -classpath "C:\Program Files\2018.4.2f1\Editor\Data\PlaybackEngines\AndroidPlayer\Tools\gradle\lib\gradle-launcher-4.6.jar" org.gradle.launcher.GradleMain "-Dorg.gradle.jvmargs=-Xmx4096m" "assembleRelease"
stderr[
D8: Program type already present: com.unity.udp.sdk.ActivityExtension
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':transformDexArchiveWithExternalLibsDexMergerForRelease'.
> com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\0.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\1.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\2.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\3.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\4.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\5.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\6.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\7.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\8.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\9.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\10.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\11.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\12.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\13.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\14.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\15.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\16.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\19.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\20.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\21.jar, C:\Users\Jacks\Desktop\Genius Files\Unity Games\Springy Cat\Temp\gradleOut\build\intermediates\transforms\dexBuilder\release\22.jar
Program type already present: com.unity.udp.sdk.ActivityExtension
Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 25s
]
stdout[
:checkReleaseClasspath UP-TO-DATE
:preBuild UP-TO-DATE
:preReleaseBuild UP-TO-DATE
:compileReleaseAidl NO-SOURCE
:compileReleaseRenderscript
:checkReleaseManifest UP-TO-DATE
:generateReleaseBuildConfig UP-TO-DATE
:prepareLintJar UP-TO-DATE
:mainApkListPersistenceRelease UP-TO-DATE
:generateReleaseResValues UP-TO-DATE
:generateReleaseResources
:mergeReleaseResources UP-TO-DATE
:createReleaseCompatibleScreenManifests UP-TO-DATE
:processReleaseManifest
:splitsDiscoveryTaskRelease UP-TO-DATE
:processReleaseResources
:generateReleaseSources
:javaPreCompileRelease UP-TO-DATE
:compileReleaseJavaWithJavac UP-TO-DATE
:compileReleaseNdk NO-SOURCE
:compileReleaseSources UP-TO-DATE
:lintVitalRelease
:mergeReleaseShaders UP-TO-DATE
:compileReleaseShaders UP-TO-DATE
:generateReleaseAssets UP-TO-DATE
:mergeReleaseAssets
:transformClassesWithDexBuilderForRelease UP-TO-DATE
:transformDexArchiveWithExternalLibsDexMergerForRelease FAILED
21 actionable tasks: 6 executed, 15 up-to-date
]
exit code: 1
UnityEditor.Android.Command.WaitForProgramToRun (UnityEditor.Utils.Program p, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <103137eb219949558cde9ab87892d16a>:0)
UnityEditor.Android.Command.Run (System.Diagnostics.ProcessStartInfo psi, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <103137eb219949558cde9ab87892d16a>:0)
UnityEditor.Android.Command.Run (System.String command, System.String args, System.String workingdir, UnityEditor.Android.Command+WaitingForProcessToExit waitingForProcessToExit, System.String errorMsg) (at <103137eb219949558cde9ab87892d16a>:0)
UnityEditor.Android.AndroidJavaTools.RunJava (System.String args, System.String workingdir, System.Action`1[T] progress, System.String error) (at <103137eb219949558cde9ab87892d16a>:0)
UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <103137eb219949558cde9ab87892d16a>:0)
Rethrow as GradleInvokationException: Gradle build failed
UnityEditor.Android.GradleWrapper.Run (UnityEditor.Android.AndroidJavaTools javaTools, System.String workingdir, System.String task, System.Action`1[T] progress) (at <103137eb219949558cde9ab87892d16a>:0)
UnityEditor.Android.PostProcessor.Tasks.BuildGradleProject.Execute (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <103137eb219949558cde9ab87892d16a>:0)
UnityEditor.Android.PostProcessor.PostProcessRunner.RunAllTasks (UnityEditor.Android.PostProcessor.PostProcessorContext context) (at <103137eb219949558cde9ab87892d16a>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)"
what is going on?
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