I've seen something similar when building from a "DOS" command prompt. When building from a bash shell, however, as one can after installing Git For Windows" those strange errors disappear..
Another thing you can try is: make --dry-run You can examine the commands that make would generate for any errors. -- Nigel On Fri, 25 Sep 2020 at 11:48, Georg-Johann Lay <a...@gjlay.de> wrote: > Royce Pereira schrieb: > > Hi, > > > > The problem continues. > > > > it compiles without error once I delete all the generated files, but the > > next time (even with 'make clean all' I get the same error from make: > > > > "make": *** No rule to make target `c\:\avr-gcc\avr\include\avr\io.h', > > needed by `MIXER-72x75-0920.o'. Stop. > > This does not look like a reasonable file name. c\:\avr-gcc\... > > Where do you get it from? > > Johann > >