ei_standalone_inferencing_camera sample project does not compile (Error: missing file)

[bebemanso]

Steps to reproduce:

1. Set APP_TYPE: ei_standalone_inferencing_camera
2. Building firmware as per README.md:
   • make clean
   • make

Error:

app/scenario_app/ei_standalone_inferencing_camera/ei-model/edge-impulse-sdk/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_f16.c: fatal error: cannot open obj_epii_evb_icv30_bdv10/gnu_epii_evb_WLCSP65/app/scenario_app/ei_standalone_inferencing_camera/ei-model/edge-impulse-sdk/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_f16.su for writing: No such file or directory
compilation terminated.
make: *** [options/rules.mk:296: obj_epii_evb_icv30_bdv10/gnu_epii_evb_WLCSP65/app/scenario_app/ei_standalone_inferencing_camera/ei-model/edge-impulse-sdk/CMSIS/DSP/Source/BasicMathFunctions/arm_dot_prod_f16.o] Error 1

[kris-himax]

Hi @bebemanso ,

I built this app at Linux environment is fine. Is it built at Windows environment?

Hi @mmajchrzycki

Please check about this issue. I built this app at Linux environment is fine, but face the same error at Windows environment.

Thanks, Kris

[bebemanso]

Hello @kris-himax ,

Yes, I tried building the project at Windows environment.

[mmajchrzycki]

@bebemanso @kris-himax I can confirm the same issue on my Windows machine. It looks like some kind of Windows-related corner case. I'm investigating the root cause. I tried to disable the stack usage checking (this is where the .su files come from), but then I'm getting another errors related to .d files. It looks like we are hitting some Windows OS limitation (path length, number of files or something). As a workaround, are you able to build the firmware on a Linux VM or using Docker?

[bebemanso]

@mmajchrzycki

Yes, I was able to build the firmware using Ubuntu. No errors just as @kris-himax said.