build/core/base_rules.mk:183: *** build/libs/host: MODULE.linux.STATIC_LIBRARIES.libhost already defined by build.bak/libs/host.
build/core/ninja.mk:163: recipe for target ‘out/build-rk3399_firefly_box.ninja’ failed
make: *** [out/build-rk3399_firefly_box.ninja] Error 1