Google ARCore and carboard combine gives build failure issue

i am using AR core in my unity app. Its working great but when i add google cardboard sdk with AR core sdk it gaves me build failure issue. Both working fine seprately but combined gaves build failure issue.

Any solution ???

 

I chose arcore_client.aar from ARCore. And then (there must be an easier way to do this) :

1. rename arcore_client.aar to arcore_client.zip
2. look at arcore_client.zip in Windows explorer and find the classes.jar file inside.
3. Copy classes.jar out of the zip
4. Rename classes.jar to classes.zip
5. Look inside classes.zip in Windows explorer for the above package and delete the .class files (I had 3 of them)
6. Rename classes.zip to classes.jar
7. Copy back into arclient_core.zip
8. Rename arclient_core.zip to arclient_core.aar
9. Copy back to the ARCore asset folder where you found it.
10. That should give you a working build
    
    This works for me.

 

Thank you very much.