Verify/compiling issues with midi project

So i wanted to try out a midi piano project i found but, was having some problems compiling.

I have the IDE installed along with the standard arduino midi library 4.2 installed as well. Restarted my computer, edited the code and got these errors while trying to compile:

Arduino: 1.6.5 (Windows 8.1), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"

Build options changed, rebuilding all

midi:5: error: #include expects "FILENAME" or <FILENAME>
midi:6: error: expected constructor, destructor, or type conversion before ';' token
midi.ino: In function 'void setup()':
midi:40: error: 'MIDI' was not declared in this scope
midi:40: error: 'MIDI_CHANNEL_OMNI' was not declared in this scope
midi.ino: In function 'void loop()':
midi:65: error: 'MIDI' was not declared in this scope
midi:84: error: 'MIDI' was not declared in this scope
#include expects "FILENAME" or <FILENAME>

I just have the 3 inputs so adjusted it according to what the instructions say on that site. Is there a problem with the coding, midi library or something else? I can upload sample sketches no problem, just not this one. Here is the code i edited for use on my project:

/*
MIDI Toy Piano Hack Code
*/

#include 
MIDI_CREATE_DEFAULT_INSTANCE();

//========================================================================================
//Values you may need to change

//Set this value to the number of keys/piezos you are using
const int NUM_OF_KEYS = 3;
//Adjust this value to change the sensitivity of the piezos
const int THRESHOLD = 5;
//Set this value to the number of microseconds you want each MIDI note to last for
const int NOTE_LENGTH = 50;
//Adjust this value to set the range of MIDI note velocity values
const int VEL_SENSE_VAL = 2;

//Change this number to set what MIDI channel the MIDI notes are set to
const int midiChan = 1;
//Change these numbers to set what MIDI note number each key/piezo will send.
//Also make sure that the total number of numbers here matches the value of NUM_OF_KEYS
const int midiNote[NUM_OF_KEYS] = {86, 84, 83};

//Change these values to set which analog input pins you are using
//Also make sure that the total number of values here matches the value of NUM_OF_KEYS
const int triggerSensor[NUM_OF_KEYS] = {A0, A1, A2};

//=======================================================================================

//Variables for storing certain values
int triggerVal[NUM_OF_KEYS] = {0};
bool noteIsOn[NUM_OF_KEYS] = {false};
int midiNoteTime[NUM_OF_KEYS] = {0};
int midiVelocityVal[NUM_OF_KEYS] = {0};

void setup()
{
    MIDI.begin(MIDI_CHANNEL_OMNI);
}

void loop()
{
    //repeat the below code for each anaolog input/piezo sensor
    for (int count; count < NUM_OF_KEYS; count++)
    {
        //read the piezo value
        triggerVal[count] = analogRead(triggerSensor[count]);

        //if the value is over the threshold and there isn't currently a note on for this piezo
        if (triggerVal[count] > THRESHOLD && noteIsOn[count] == false)
        {
            //get a velocity value based on the value
            midiVelocityVal[count] = triggerVal[count] * (127.0/1023.0);

            //increase sensitivity
            midiVelocityVal[count] *= VEL_SENSE_VAL;

            //make sure we don't go out of range
            if (midiVelocityVal[count] > 127)
            midiVelocityVal[count] = 127;

            //send a MIDI note-on message
            MIDI.sendNoteOn (midiNote[count], midiVelocityVal[count], midiChan);

            //flag that the note is on
            noteIsOn[count] = true;

            //start a timer for the note to be on for
            midiNoteTime[count] = NOTE_LENGTH;
        }

        //if the note is currently on
        if (noteIsOn[count] == true)
        {
            //reduce the time value by 1
            midiNoteTime[count]--;

            //if time value equals 0
            if (midiNoteTime[count] == 0)
            {
                //turn off the note
                MIDI.sendNoteOff (midiNote[count], 0, midiChan);
                noteIsOn[count] = false;
            }

        }

    }

    //pause the loop
    delay(1);
}

The code shown on that webpage in the text box does not match the code shown in the image about two-thirds of the way down the page.
You need the #include to be:

#include <MIDI.h>

Pete

Thank you so much! Literally that was the only thing i had to change and it compiled :slight_smile: Had already spent an hour trying to figure out how to fix it. Much appreciated.