How to using AES in NRF51.

[NgHieuPickon]

Hi everybody, I have a project with Generic NRF51 (NRF51822) and use an AES encryption library in the arduino release documentation - - https://www.arduino.cc/reference/en/libraries/aeslib/ When I start the "simple" example, the console shows "AES_config.h:37:85: fatal error: pgmspace.h: No such file or directory". I understand that in the core there is no such file. But I think there must be a way to use it. I know in Softdevice (https://developer.nordicsemi.com/nRF5_SDK/nRF51_SDK_v8.x.x/doc/8.0.0/s110/html/a00756.html) there is AES ECB encryption but i don't know how to use it. Please help me!