Clion Arduino plugin: Error:Could not find Arduino SDK (set ARDUINO_SDK_PATH)

Question

I am trying to setup CLion as my workspace for my arduino. I have installed the two Arduino plugins for CLion, generated a new sketch project, but I am getting cmake errors on opening the project.

CMake Error at /cygdrive/c/Users/user/project/cmake/ArduinoToolchain.cmake:86 (message):
  Could not find Arduino SDK (set ARDUINO_SDK_PATH)!
Call Stack (most recent call first):
  /cygdrive/c/Users/user/project/CMakeFiles/3.9.4/CMakeSystem.cmake:6 (include)
  /cygdrive/c/Users/user/project/CMakeFiles/CMakeTmp/CMakeLists.txt:3 (project)

The issue is similar to this logged issue here: https://github.com/francoiscampbell/CLionArduinoPlugin/issues/11

As a Windows 10 user, I have the Arduino SDK installed here: C:\Program Files (x86)\Arduino

What's interesting is that the cmake file is calling the UNIX commands when it's running in this if statement:

    if(UNIX)
        file(GLOB SDK_PATH_HINTS /usr/share/arduino*
            /opt/local/arduino*
            /opt/arduino*
            /usr/local/share/arduino*

                )
    elseif(WIN32)
        set(SDK_PATH_HINTS "C:\\Program Files\\Arduino"
            "C:\\Program Files (x86)\\Arduino\\libraries"
            )
    endif()