I have a friend who is just getting started with Arduino UNO. He downloaded a sketch and is using a UNO on Mac OS. He loaded the sketch and verified. it comes up with errors. He sent me the same sketch and i opened it under Win7 arduino software. verified, and it says it is fine. i made an arduino file and emailed it back to him. he is still getting the same errors. can anyone help and let me know what is wrong? i am not a MAC expert and wonder why this works in win and not MAC???????? appreicate any help anyone can give me

  • 3
    Can you post the source code and the errors please? It's difficult to suggest anything useful otherwise. – Peter Bloomfield Apr 23 '15 at 13:33
  • 1
    Do you both have the Uno selected as target device in the IDE? – Joris Groosman Apr 23 '15 at 14:24
  • 1
    Are you using the same version of the Arduino IDE. – Gerben Apr 23 '15 at 14:30

I've had the same issue with Mac OSX 10.6.8 vs Windows XP SP3 using the same IDE version. I don't have a definitive answer for you, but I know that Microsoft has more frequent updates compared to Apple, which could be the reason. I suspect my issue and your friend's issue is the GCC compiler we're using. The compiler would be updated on OSX only when you update your entire OSX version. To get around that, there are third-party package managers: Homebrew and MacPorts that would allow you to just update the GCC compiler for example.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

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