app is not starting

Development Platform & Builds Mobile
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1

i had downloaded this demo on my android device to test this amazing work but gives me error or sometimes crashing ?
www.unreal4ar.com/demo-videos/

i downloaded this android version and install apk file on try to rum it but gave me error oob and key not found ?

2

It works fine for me. You need to install the obb with the included batch file; you cannot just install the APK. Also, it uses ATC compression so it likely only works on Adreno devices.