Sub.h : fatal error: AP_HAL/AP_HAL.h: no such file or directory

[AnuA (Anu Antony)]

Hello, i am new to ArduSub. while execting ArduSub.cpp file, i end up in this situation.
i cross-checked the existence of AP_HAL/AP_HAL.h file & is found in ardupilot/libraries/AP_HAL/AP_HAL.h

[patrickelectric (Patrick José Pereira)]

Hi @AnuA,

Check our build instructions here:
https://www.ardusub.com/developers/developers.html