Encryption/Decryption in nodemcu via Arduino IDE

Actually, I am getting this error after installing the library.

fatal error: avr/pgmspace.h: No such file or directory

#include <avr/pgmspace.h>

^

compilation terminated.

Error compiling for board NodeMCU 1.0 (ESP-12E Module).

that's why I have to post this thing again. sorry for your inconvenience