Just Started Using Arduino: Having Trouble

Projects Programming
1

I just started using my Arduino Uno and attached a circuit with a motor attached to my mac. I used some code online that looks like this:
/*
Adafruit Arduino - Lesson 13. DC Motor
*/

int motorPin = 3;

void setup()
{
pinMode(motorPin, OUTPUT);
Serial.begin(9600);
while (! Serial);
Serial.println("Speed 0 to 255");
}

void loop()
{
if (Serial.available())
{
int speed = Serial.parseInt();
if (speed >= 0 && speed <= 255)
{
analogWrite(motorPin, speed);
}
}
}

I keep getting this error message and I have no idea how to fix it.

Arduino: 1.6.11 (Mac OS X), Board: "Arduino/Genuino Uno"

Sketch uses 2,366 bytes (7%) of program storage space. Maximum is 32,256 bytes.
Global variables use 200 bytes (9%) of dynamic memory, leaving 1,848 bytes for local variables. Maximum is 2,048 bytes.
chmod: Unable to change file mode on /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude_bin: Operation not permitted
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude: line 6: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude_bin: Permission denied
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude: line 6: exec: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude_bin: cannot execute: Undefined error: 0
/Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude: line 6: exec: /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude_bin: cannot execute: Undefined error: 0

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Please Help!

2

Reinstall the IDE correctly (are you an admin of your machine ?)