Power & Source of Big Ideas

Thank you.
I build Rom for this product:

http://www.friendlyarm.com/index.php?ro ... duct_id=96
Dear All. I building android 5.1, but it happen when call function Register_librecovery_updater_nanopi2(). it missing. so please help me, how to fix it? The message is below: target Symbolic: libion (out/target/product/nanopi2/symbols/system/lib/libion.so) target Symbolic: libion-nexell (out/target/...
i build android ROM for nanopi 2 fire, but it missing function Register_librecovery_updater_nanopi2(). Please help me. how to fix it. Message here: target Symbolic: libion-nexell (out/target/product/nanopi2/symbols/system/lib/libion-nexell.so) target Symbolic: libv4l2-nexell (out/target/product/nano...