i have a trouble i cant access esp8266 i get the error which is below

[RathishVellingiri]

WARNING: Spurious .github folder in 'Adafruit Fingerprint Sensor Library' library
Build options changed, rebuilding all
C:\Users\User1\Documents\Arduino\node1\node1.ino:8:25: fatal error: ESP8266WiFi.h: No such file or directory

compilation terminated.

exit status 1
Error compiling for board Arduino/Genuino Uno.

[Bholtland]

Same here, I think the problem is that we want to use the ESP8266 merely as a WiFi module to the Arduino Uno. I have no clue on how to do this. The module is connected and working.