I guess i will retry installing the library and or board manager, I seem to have the same issue
Arduino: 1.8.2 (Windows 7), Board: “NodeMCU 1.0 (ESP-12E Module), 80 MHz, 115200, 4M (3M SPIFFS)”
Build options changed, rebuilding all
r:\temp\arduino_modified_sketch_107766\sketch_jul24a.ino:6:32: fatal error: CayenneMQTTESP8266.h: No such file or directory
exit status 1
Error compiling for board NodeMCU 1.0 (ESP-12E Module).
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.