EFM32 Pearl Gecko tickless demo build error

I imported the sample project for Pearl Gecko to Simplicity Studio (CORTEX_EFM32_Pearl_Gecko_Simplicity_Studio). http://www.freertos.org/EFM32-Giant-Gecko-Pearl-Gecko-tickless-RTOS-demo.html But, the following error was found and I couldn’t build it. Error Description: make: *** No rule to make target `clean’. Stop. Error Resource: RTOSDemo Error Type: C/C++ Problem Makefile that Simplicity Studio automatically created was empty. How can I fix it? Environment:
  • Microcontroller: EFM32 Pearl Gecko
  • Tool: Simplicity Studio v4
  • OS: macOS Sierra 10.12.3
  • Version of FreeRTOS: 9.0.0

EFM32 Pearl Gecko tickless demo build error

I have no idea about running SimplicityStudio on a Mac, but a recent post reporting something similar was resolved when the poster updated their version of SimplicityStudio to the most recent.