Unable to build ykushcmd control application on ubuntu 20.04

[sureshmanisns]

I followed the below steps to build and install ykushcmd control application,

Download the source package.

$ wget https://github.com/Yepkit/ykush/archive/1.2.2.zip

Extract

$ unzip 1.2.2.zip

Install the required packages

$ sudo apt-get install libusb-1.0-0-dev libusb-1.0-0

Build

$ cd ykush-1.2.2
$ ./build.sh

Install

$ sudo ./install.sh

---

$ ./build.sh - Getting the following error,
src/commandParser.cpp:55:10: fatal error: ykush.h: No such file or directory
55 | #include <ykush.h>
| ^~~~~~~~~

Do I need to insatll any other dependencies to build without any error?