ERROR: failed with args

I keep getting errors when trying to package my game. I really need to be able to package it, as I have recently bought my Google Play Developers account, and am pretty much done with the initial release of the game. I was packaging just fine before I added the information for things like Admob and Google Play Services, but I feel like they are not the problem. I have all the fields filled in with the correct information. The only issues I’ve had with this project before is when I accidentally added a C++ file that almost broke my blueprint-only project, and when Gradle wouldn’t work (And still won’t)

I have solved all my other errors so far, but this one is persistent and appeared at the very end of all the others.

Things I have tried so far:
Enabling Gradle instead of Ant (Similar error appeared)
Packaging for shipping and development (Same thing)
Reinstalling SDK (Didn’t work)
Any help would be greatly appreciated.

I gotta bump this, I really need help