Error compiling for board Nodemcu... error ???

A few months ago I began my first project… using an ESP8266-12E to send a security alert to my iphone. Pretty much figured out how to do it and got it all working just fine. I just received my Sparkfun stuff to learn how to do IR remote stuff. But I am stuck. Following the Sparkfun instructions… when I try to compile “Remote_example” I get an error “avr/interupt.h: No such file…” and "error compiling for board NodeMCU 1.0 (ESP-12E).

I don’t know why it is “compiling for board NodeMCU…”

Never mind… I just remembered… Tools > Board:. Sigh.