Error when run with spike

Hi, I tried to run the example and it showed the error as follow:
spike --isa=rv32imc -m0x00002000:0xFFFE000,0x10000000:0x70000000,0x80000000:0x80000000 kernel
devices at [2000, 10000000) and [2000000, 20c0000) overlap

The issue may due to the newer version of spike. 
Anyway, I think the memory region suggested by -m<a:b> option in Makefile should be adjusted to make the example work.