MIDIUSB and MIDIEvent problem errors Arduino Pro Micro

[kianiszewski]

Im trying to create a 16 midi device to use with Serato DJ. Im using an Arduino Pro Micro (MEGA32U4) with a Multiplexer of 16 channels (HC4067), that im going to use it as digital.

The problem is, that Im receiving always and always the MIDIUSB and MIDIEvent errors

Im using MAC OSX with Sierra, and Arduino 1.8.4, Im not sure what Im supossed to do in order to compile at least the code from https://github.com/evankale/ArduinoMidiFader, even with your examples im receiving this kind of error!

Example from https://github.com/rkistner/arcore

Please some help!

[rkistner]

Make sure to follow the installation instructions in the Readme:
https://github.com/rkistner/arcore#installation-and-usage

It's also possible that there is an incompatibility with newer versions of the Arduino IDE - try a 1.5.x or 1.6.x version.