Compilation error #error "BLUETOOTH is only supported with AT90USB." for Marlin

Hi
i am am facing the below mentioned error while i am verifying the Marlin 1.1.9 firmware (GitHub - MarlinFirmware/Marlin: Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. | Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.) for my DIY 3d Printer. since i only modify the configuration.h file and most of the it works. Please guide me to resolve this issue.

In file included from C:\Users\OPTIMUS\AppData\Local\Temp\arduino_build_631581\sketch\MarlinConfig.h:42:0,

from C:\Users\OPTIMUS\AppData\Local\Temp\arduino_build_631581\sketch\G26_Mesh_Validation_Tool.cpp:27:

SanityCheck.h:352:6: error: #error "BLUETOOTH is only supported with AT90USB."

#error "BLUETOOTH is only supported with AT90USB."

^

exit status 1
#error "BLUETOOTH is only supported with AT90USB."

This is NOT a bootloader issue

Thanks for the reply..