For Teensy NMEA2000 you need:
- Teensyduino installed.
- GitHub - ttlappalainen/NMEA2000: NMEA2000 library for Arduino
- GitHub - ttlappalainen/FlexCAN_Library: Arduino library for CAN on Teensy 3.1, 3.2 and 3.6
- GitHub - ttlappalainen/NMEA2000_teensy: A driver for the NMEA2000 Arduino library and the teensy 3.1/3.2 boards
Note that on Teensyduino install you should not install FlexCAN. If you did, delete folder:
"C:\Program Files (x86)\Arduino\hardware\teensy\avr\libraries\FlexCAN"
It should complete compilation without board and there should not be any errors/warning, if you use just compile button at leftmost on Arduino IDE.