No rule to make target 'src/modules/example.o', needed by 'src/modules/built-in.o'.

[PapercutSmothie]

I'm trying to follow this tutorial ( https://www.bitcraze.io/documentation/repository/crazyflie-firmware/master/development/systemtask/ ) on the crazyflie website to create a simple hello world output from the crazyflie. I am getting the error though when I try to 'make clean && make' where it stops after building the src/modules.src/built-in.o and gives the following errors:
make[3]: *** No rule to make target 'src/modules/example.o', needed by 'src/modules/built-in.o'. Stop.
make[2]: *** [../scripts/Makefile.build:311: src/modules] Error 2
make[1]: *** [tools/kbuild/Makefile.kbuild:587: src] Error 2
make[1]: Leaving directory '/home/cael/crazyflie-firmware/build'
make: *** [tools/kbuild/Makefile.kbuild:150: sub-make] Error 2
I'm new to programming the crazyflie and messing with makefiles so any help is greatly appreciated.

[PapercutSmothie]

Found the problem. Remember when you are adding the task to the correct kbuild file. It should be in src/modules/src/ and not src/modules (it will appear in the middle of all the .c files in Visual Studio for some reason).