Arduino-STM32

Hi.
I am trying to program a Nucleo64 (STM32L476) with Arduino IDE. In my code, I have the following

#include “CurieTimerOne.h”

This is the point where I get an error when I use Nucleo. I have no problem when I have Arduino101. However, a problem arises with Nucleo where it cannot find this library.

The error message while using Nucleo is:

MyFileName:50:10: fatal error: CurieTimerOne.h: No such file or directory
50 | #include “CurieTimerOne.h”
| ^~~~~~~~~~~~~~~~~
compilation terminated.

I downloaded this library from Github and added it to the libraries’ folder but no success!

Whatever I do with the subfolders including this library and other dependencies, I cannot fix this problem.

Any help is appreciated.