Support for LEDs?

Hi, just received my shiny new BLE 33 Sense. I’m trying to build a led system to work off the 9axis IMU readings, however, I’m having trouble compiling using either Neopixel or FastLed libraries.

Does anyone know if these currently work or am I just missing something. Is there any other option to drive LEDs, or do I have to wait for things to get updated?

Thanks for any help