How can I use files like ardupilot-master?

General Discussion
1

I saw ardupilot-master and downloaded it, but how to use this type of file, thank you for teaching

2

Hi,

Are you talking about github download feature in the right corner ?
image

This should not be used, since it does not contain the submodules. Please follow our instructions if you want to build ArduSub.

3

ok thank you.