Help building ardusub fork

We modified the ArduSub source code in order to create a proper joystick configuration for the BlueROV2 Heavy, mentioned here.

We modified the joystick module code to toggle pitch/roll with throttle/Lateral on the right joy stick (Channels 2/3). Our modified (but untested) sub joystick.cpp file is here. (Our edits starting at line 91): May 20, 2019 - Codeshare

Now that the code is edited, I’m having trouble getting it to build successfully. I followed the instructions here for setting up the build environment on Windows, but I’m getting errors when trying to build with Eclipse on Windows 7.

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Is Windows 10 required to build this? What else could be the issue?