Compiling with library throws error

Question

I Found a Firebase example for an Arduino, from Github . I have added the Firebase Arduino library as instructed in the ReadMe document, but the compilation failed, throwing the following error:

In file included from firebase_sample_stream.ino:20:0:
/Users/<username>/Documents/Arduino/libraries/firebase-arduino-master/Firebase.h:24:25: fatal error: ESP8266WiFi.h: No such file or directory
#include <ESP8266WiFi.h>

Not only Firebase library, but also any other libraries. What am I missing here?

Hope someone would have solved this issue.

Answer 1

You can manually download the file from here and include it in your project. That may work. Or you can add http://arduino.esp8266.com/stable/package_esp8266com_index.json into Additional Board Manager and update the board.