Hi,
tricky to figure out :
the direct link to download the NDK is for r8 which has 4.3.3 Toolchain.
with the GitHub OF, you will need NDK r8b update with 4.6 toolchain !
Be carefull (and maybe delete the direct link to r8 and just let the link
to the NDK download page with the latest version available)
Thanks for your work
Best Regards,
Thomas