Android packaging fails

Development Platform & Builds Mobile
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1

Hi.
I am developing an application which will run on windows, iOS and android.
I can launch the application using the launch button so install it into my android devices.
I want to pack it but it fails.
I have installed the android sdk following unreal engine documentation.
I have installed visual studio 2017 and 2013 ( which seems to be mandatory ).

I have set up sdk, ndk, jdk folders in project settings.
I think I have done everything I found online but it fails.
I tryed to create a new templeate project too, pack it and it works, so I realized that the problem is in my project.

It could be interesting that I use a huge landscape of 30Km x 30 Km but the strange thing is that launching it directly to the device it works.

logerror is attached below.

link text

2

I succeed in pack the project.
I have deleted the intermediate folder and some inside saved one.
Then I have installed ndk 21 and reconfigure the sdk-android (set android-21).
This time it works. I uploaded it on my Redmi Pro Note 3 and it works.
It does not work on my nexus 7 2013 but I think it depends on the API configuration or similar.