Hi Sudhakar,
Have you built the RTCS library first?
C:\Freescale\KSDK_1.1.0\tcpip\rtcs\build\kds\rtcs_frdmk64f
Also please review the following to build the RTOS:
C:\Freescale\KSDK_1.1.0\rtos\mqx\doc\Getting Started with Freescale MQX RTOS for Kinetis SDK.pdf
With all this built, then you should be able to build the application.
Regards,
David