System cannot find EventGroupsDemo.c in Demo full build – Kernel

It is the first time I tried to build FreeRTOS demo in FreedomStudio. I downloaded FreeRTOSv202111.00 and imported RISC-V-Qemu-sifive_e-Eclipse-GCC project to FreedomStudio. I found it failed in system cannot find EventGroupsDemo.c. I have checked the folder name and file name. I don’t see any problem. Can you tell me if there are some setup required?

5:12 **** Incremental Build of configuration Debug for project RTOSDemo
make -j16 all
process_begin: CreateProcess(NULL, echo “Building file: C:/RiscV/FreeRTOSv202111.00/FreeRTOS/Demo/Common/Minimal/EventGroupsDemo.c”, …) failed.
make (e=2): The system cannot find the file specified.

make: *** [full_demo/standard_demo_tasks/ full_demo/standard_demo_tasks/EventGroupsDemo.o] Error 2
“make -j16 all” terminated with exit code 2. Build might be incomplete.

11:35:13 Build Failed. 1 errors, 0 warnings. (took 617ms)

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