Pixhawk PX4 Support Build: Validation Error

So I am trying to build the model of a flight feedback controller that I have in Simulink for a fixed wing model airplane. This is the error I get, but I don't know how to approach it.

I reinstalled CMake 3.6.0. I even tried copying "sys/ioctl.h" around to different folders and it still didn't work. I also tried searching around for "MAKEROOTWIN" but I have not found anything related to that term with GMake.

Thank you for considering my issue.

### Invoking Target Language Compiler on RC_controller_autopilot.rtw
### Using System Target File: C:\Program Files\MATLAB\R2016a\rtw\c\ert\ert.tlc
### Loading TLC function libraries
### Initial pass through model to cache user defined code
### Caching model source code
### Writing source file RC_controller_autopilot.c
### Writing header file RC_controller_autopilot_private.h
### Writing header file RC_controller_autopilot.h
### Writing header file RC_controller_autopilot_types.h
### Writing header file rtwtypes.h

.
### Writing header file multiword_types.h
### Writing header file zero_crossing_types.h
### Writing source file RC_controller_autopilot_data.c
### Writing header file rtmodel.h
### Writing source file ert_main.c
.
### TLC code generation complete.
### Evaluating PostCodeGenCommand specified in the model
Nothing to remove from build output
Build path: C:\Users\jam\Documents\MATLAB\RC_controller_autopilot_ert_rtw
Removing Simulink module CMAKE source directory, adding new content..

Warning: Directory already exists.

Building objects to ensure proper compilation, will then invoke make command on firmware after
### Using toolchain: Pixhawk Toolchain v4.6.2 | gmake (64-bit Windows)
### 'C:\Users\jam\Documents\MATLAB\RC_controller_autopilot_ert_rtw\RC_controller_autopilot.mk' is up to date
### Building 'RC_controller_autopilot': %PX4_ROOT%\toolchain\bin\make -f RC_controller_autopilot.mk postdownload_preexecute all

C:\Users\jam\Documents\MATLAB\RC_controller_autopilot_ert_rtw>cd .  

C:\Users\jam\Documents\MATLAB\RC_controller_autopilot_ert_rtw>if "" == "" (c:/px4\toolchain\bin\make -f RC_controller_autopilot.mk postdownload_preexecute all )  else (c:/px4\toolchain\bin\make -f RC_controller_autopilot.mk postdownload_preexecute  )  
arm-none-eabi-gcc -MD -c -std=gnu99 -Wall -Wextra -Wdouble-promotion -Wshadow -Wfloat-equal -Wframe-larger-than=1024 -Wpointer-arith -Wlogical-op -Wmissing-declarations -Wpacked -Wno-unused-parameter -Werror=format-security -Werror=array-bounds -Wfatal-errors -Wformat=1 -Wbad-function-cast -Wstrict-prototypes -Wold-style-declaration -Wmissing-parameter-type -Wmissing-prototypes -Wnested-externs -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -ffixed-r10 -mfloat-abi=hard   -DCONFIG_ARCH_BOARD_PX4FMU_V2 -fno-common -nodefaultlibs -nostdlib -Wframe-larger-than=2000 -fvisibility=hidden -include visibility.h -O0 -fno-builtin-printf -DMODEL=RC_controller_autopilot -DNUMST=2 -DNCSTATES=4 -DHAVESTDIO -DONESTEPFCN=1 -DTERMFCN=1 -DMAT_FILE=0 -DMULTI_INSTANCE_CODE=0 -DINTEGER_CODE=0 -DMT=0 -DCLASSIC_INTERFACE=0 -DALLOCATIONFCN=0 -DTID01EQ=1 -D__MW_TARGET_USE_HARDWARE_RESOURCES_H__ -DUSE_STDPERIPH_DRIVER -DPX4 -DCONFIG_ARCH_BOARD_PX4FMU_V2 -DGIT_VERSION=d3398270e101359de9687c2d077d991c9892f573 -D__DF_NUTTX -D__PX4_NUTTX -DARM_MATH_CM4=1 -D__FPU_PRESENT=1 -D__FPU_USED=1 -DHSE_VALUE=8000000 -DNULL=0 -DEXIT_FAILURE=1 -DEXTMODE_DISABLETESTING -DEXTMODE_DISABLEPRINTF -DRT -DSTACK_SIZE=64 -DONESTEPFCN=1 -DTERMFCN=1 -DMAT_FILE=0 -DMULTI_INSTANCE_CODE=0 -DINTEGER_CODE=0 -DMT=0 -DCLASSIC_INTERFACE=0 -DALLOCATIONFCN=0 -DTID01EQ=1 -DUSE_STDPERIPH_DRIVER -DPX4 -DCONFIG_ARCH_BOARD_PX4FMU_V2 -DGIT_VERSION=d3398270e101359de9687c2d077d991c9892f573 -D__DF_NUTTX -D__PX4_NUTTX -DARM_MATH_CM4=1 -D__FPU_PRESENT=1 -D__FPU_USED=1 -DHSE_VALUE=8000000 -DNULL=0 -DEXIT_FAILURE=1 -DEXTMODE_DISABLETESTING -DEXTMODE_DISABLEPRINTF -DRT -DSTACK_SIZE=64 -DMODEL=RC_controller_autopilot -DNUMST=2 -DNCSTATES=4 -DHAVESTDIO -IC:/PROGRA~1/MATLAB/R2016a/simulink/include/sf_runtime -IC:/Users/jam/Documents/MATLAB/RC_controller_autopilot_ert_rtw -IC:/Users/jam/Documents/MATLAB -IC:/Users/jam/Downloads -IC:/PROGRA~1/MATLAB/R2016a/extern/include -IC:/PROGRA~1/MATLAB/R2016a/simulink/include -IC:/PROGRA~1/MATLAB/R2016a/rtw/c/src -IC:/PROGRA~1/MATLAB/R2016a/rtw/c/src/ext_mode/common -IC:/PROGRA~1/MATLAB/R2016a/rtw/c/ert -IC:/PROGRA~1/MATLAB/R2016a/rtw/c/src/ext_mode/serial -Ic:/px4/src/lib/mathlib/CMSIS/Include -Ic:/px4/lib/gcc/wingw32/4.6.2.include -Ic:/px4/Firmware/src -Ic:/px4/Firmware/build_px4fmu-v2_default -Ic:/px4/Firmware/build_px4fmu-v2_default/src -Ic:/px4/Firmware/src/modules -Ic:/px4/Firmware/src/include -Ic:/px4/Firmware/src/lib -Ic:/px4/Firmware/src/platforms -Ic:/px4/Firmware/src/drivers/boards/px4fmu-v2 -Ic:/px4/Firmware/build_px4fmu-v2_default/src/modules/px4_messages -Ic:/px4/Firmware/build_px4fmu-v2_default/src/modules -Ic:/px4/Firmware/mavlink/include/mavlink -Ic:/px4/Firmware/src/lib/DriverFramework/framework/include -Ic:/px4/Firmware/src/lib/matrix -Ic:/px4/Firmware/build_px4fmu-v2_default/px4fmu-v2/NuttX/nuttx-export/include -Ic:/px4/Firmware/build_px4fmu-v2_default/px4fmu-v2/NuttX/nuttx-export/include/cxx -Ic:/px4/Firmware/build_px4fmu-v2_default/px4fmu-v2/NuttX/nuttx-export/arch/chip -Ic:/px4/Firmware/build_px4fmu-v2_default/px4fmu-v2/NuttX/nuttx-export/arch/common -Ic:/px4/Firmware/build_px4fmu-v2_default/external/Install/include -IC:/PROGRA~1/MATLAB/R2016a/toolbox/psp/pixhawk/include -o "RC_controller_autopilot.o" "RC_controller_autopilot.c"
In file included from RC_controller_autopilot.h:23:0, 
                 from RC_controller_autopilot.c:16: 
c:/px4/Firmware/src/drivers/drv_rc_input.h:44:23: fatal error: sys/ioctl.h: No such file or directory 
compilation terminated. 
make: *** [RC_controller_autopilot.o] Error 1

C:\Users\jam\Documents\MATLAB\RC_controller_autopilot_ert_rtw>echo The make command returned an error of 2  
The make command returned an error of 2 

C:\Users\jam\Documents\MATLAB\RC_controller_autopilot_ert_rtw>An_error_occurred_during_the_call_to_make
'An_error_occurred_during_the_call_to_make' is not recognized as an internal or external command, 
operable program or batch file.
### Creating HTML report file RC_controller_autopilot_codegen_rpt.html
Warning: Validation warning(s): 
Skipped the existence check for 'Invoke Make'. Cannot determine the utility that needs to be checked for existence from the build tool command '$(call CALLPX4MK)'.
### Build procedure for model: 'RC_controller_autopilot' aborted due to an error.
Error(s) encountered while building "RC_controller_autopilot":

### Failed to generate all binary outputs.
Caused by:
Validation error(s): 
GMAKE Utility: Path '$(MAKEROOTWIN)' does not exist.
Component: Simulink | Category: Model error

[Mark Andrews]

Hello Jose I am getting started on px4 in embedded coder but have no idea how to. I know its a very broad question but could you please spare a few mins to point me in the right direction on how to get started.

Thanks.

[yohan diaz]

Have somobody found the solution? Building the "tune demo" the same error is shown. the CMake version used could be a probably cause?

Thanks in advanced!

Answer 1

[Yuanyan Chen]

I have solved the problem. Make sure your test folder's name does not include any space.

[yifan lin]

I have also solved this problem. As this answer suggests, you should not include any space in your test folder's name/path, including your MATLAB install path.

Answer 2

[Xin Jin]

Maybe,the Toolchain you need to install again, the matlab changed some files when install it. Please follow the order of the tutorial to install.

Answer 3

[Abhishek GS]

The official support package 'Embedded Coder Support Package for PX4 Autopilots' is now available from R2018b onwards.

Here is the documentation on getting started with the official support package.

~Abhishek