Michael, I hit a similar issue and it's likely because your windows username has a space in it. (mine did too, exactly same error) xtensa-esp32-elf-gcc.exe: error: C:\Users\Michael: No such file or directory xtensa-esp32-elf-gcc.exe: error: Kremer\AppData\Roaming/ccache/tmp/cmd_args.bB9taw: No such ...