I am trying to figure out how to meet the android 64 bit requirement. I am using 2018.3.5f1 and when I got to build settings, under target architecture, ARM64 is listed but it is greyed out. It will not let me check it. How do I product a 64bit build?
I actually JUST figured this out.
go to file > build settings
bottom left corner of Build settings > player settings
in the inspector > other settings > scroll down to Configuration > SCRIPTING BACKEND > SWITCH FROM MONO TO IL2CPP > scroll down more > you can now click ARM64
took me forever!
Would like to add that Android NDK is also required.