My project complie failed, the consile message is:

**** Build of configuration XMOS Compiler Collection (xcc) for project app_usb_aud_l1 ****

xmake all
Creating dependencies for coeffs.h
make -f ../build_biquad_coefficients/Makefile \
FILTER='-min -20 -max 20 -step 1 -bits 27 -low 200 -high 4000 -peaking 600 1 -peaking 1200 1' \
INCLUDEFILE=src/coeffs.h \
XCFILE=src/coeffs.xc \
CSVFILE=response.csv
process_begin: CreateProcess(NULL, make -f ../build_biquad_coefficients/Makefile "FILTER=-min -20 -max 20 -step 1 -bits 27 -low 200 -high 4000 -peaking 600 1 -peaking 1200 1" INCLUDEFILE=src/coeffs.h XCFILE=src/coeffs.xc CSVFILE=response.csv, ...) failed.

make (e=2): The system cannot find the file specified

what wrong on my PC? how to slove it?

Somewhere in your project's Makefile(s) it says

instead of

and that won't work on your system.

Dear Segher,

It is OK now, thank you very much!