Error: Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug' (AS Canary)

[andersonbadari]

I'am using Android studio Canary 5, and when I press SHIFT+F10 to 'Run app', it gives the following error message:

Error:Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.

What can it be?

[bkolarov-appolica]

Hi,
thank you for using our library.

Does this problem occur only when using our library? Can you reproduce the same problem whith our library's dependency removed?

[andersonbadari]

Well, until now, only when I'm using Flubber this error happens, and I can't reproduce this error with another library.
Maybe could be an error in the IDE...

[deangenovski]

Could you try running our sample project and report back the results?

[galonga]

Hey all,
thanks for that nice lib. It worked for me very well, but after a rebase onto our dev branch and a Gradle sync I have the same problem. After removing Flubber from the dependencies I was able to build again.

Config:
buildToolsVersion '26.0.1'
minSdkVersion 21
targetSdkVersion 26
support_lib_version: 26.1.0

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

[andersonbadari]

@deangenovski
The demo project for Fubber works nice. I will try to import some libraries (which Im using in my project) into the demo and see which one is causing this error.

[andersonbadari]

Found what was. If I remove this line in build.gradle (Module: app) implementation org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version , I can run the app. I am using android studio 3.0 beta v5.
Variable kotlin_version is '1.1.4-3'

[fic212]

Same problem with AS 3.0 and kotlin_version 1.1.51