Try to follow README at https://github.com/micropython/micropython https://github.com/micropython/micropython - it gives detailed (and simple) steps to build Mi

Try to follow README at https://github.com/micropython/micropython https://github.com/micropython/micropython - it gives detailed (and simple) steps to build MicroPython. We also have continuous integration system ("build passing" badge in the same README), you can compare known good build process with what you get and see where it goes wrong for you. Finally, you can ask for help on the forum.