3DR Ardupilot-solo compilation errors

Hi All,

I’m currently trying to compile the 3DR ardupilot-solo code with PX4Firmware-solo on OSX but I keep getting this error:

grep: /Users/Joey/GitHub/solo4/PX4Firmware-solo/Build/px4fmu-v2_APM.build/nuttx-export/include/nuttx/config.h: No such file or directory
%  BOARD               = px4fmu-v2
%  WORK_DIR            = /Users/Joey/GitHub/solo4/PX4Firmware-solo/Build/px4fmu-v2_APM.build/
%  NUTTX_EXPORT_DIR    = /Users/Joey/GitHub/solo4/PX4Firmware-solo/Build/px4fmu-v2_APM.build/nuttx-export/
%  NUTTX_CONFIG_HEADER = /Users/Joey/GitHub/solo4/PX4Firmware-solo/Build/px4fmu-v2_APM.build/nuttx-export/include/nuttx/config.h
/Users/Joey/GitHub/solo4/PX4Firmware-solo/makefiles/firmware.mk:221: *** Can't find module(s): drivers/mpu9250 systemcmds/otp.  Stop.
make[1]: *** [/Users/Joey/GitHub/solo4/PX4Firmware-solo/Build/px4fmu-v2_APM.build/firmware.px4] Error 2

Any ideas on this would be really appreciated.