Hello. I'm creating a project that have the same idea as Carmadillo . I have followed each and every steps provided by the developer. unfortunately i got an error in the UDP Server ( the screen shot of the error ) https://app.box.com/s/v0g080ct6fe5jq47tc5gz88p468z7o5a I have tried all the possible ways but still the error can't be fixed. I also followed the steps here but nothing change. http://unix.stackexchange.com/questions ... mmand-line And Aslo i have changed the name of the port to /dev/ttymxc3 , and i got an error also. Here is a screen shot of it. https://app.box.com/s/e7na4skljwy7a3oqghkb07s5z4zwhwe0 Can anyone help me? i would really appreciated PS: i upload the screen shot in the box.