I am kind of new in LEGO MINDSTORMS, I tried to download a program to the NXT robot and got the Error code 7- "Cannot download needed file for the program" - can someone tell me what should i do?

  • Try uninstalling and then reinstalling the NXT programming software. That might help.
    – bsaat
    Jan 8, 2014 at 21:53
  • A screenshot of the program may help too. Apr 28, 2020 at 0:22

1 Answer 1


This is most probably an accessory file (sound or image) not present on your machine. Verify all the sound or display blocks that might use such non-standard contents.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.