Interfacing Arduino to thermocouple

I'm trying to interface a thermocouple MAX6675 to Arduino Uno using Mac IDE. Getting compile errors. Could use some help. Once I get it interfaced I want to develop code in Processing to massage and display the data. I'm new to all this and would like help/coaching on an hourly basis. You interested?

// Sample Arduino MAX6675 Arduino Sketch

#include "max6675.h"

int ktcSO = 8;
int ktcCS = 9;
int ktcCLK = 10;

MAX6675 ktc(ktcCLK, ktcCS, ktcSO);


void setup() {
Serial.begin(9600);
// give the MAX a little time to settle
delay(500);
}

void loop() {
// basic readout test

Serial.print("Deg C = ");
Serial.print(ktc.readCelsius());
Serial.print("\t Deg F = ");
Serial.println(ktc.readFahrenheit());

delay(500);
}

Error messages
-----------------------
Arduino: 1.8.9 (Mac OS X), Board: "Arduino/Genuino Uno"

/var/folders/_z/92s1vys544s4xpzwqnhgfss00000gn/T//ccurrBxy.ltrans0.ltrans.o: In function `__static_initialization_and_destruction_0':
/Users/dermodwood/Documents/Arduino/MAX6675/MAX6675/MAX6675.ino:9: undefined reference to `MAX6675::MAX6675(signed char, signed char, signed char)'
/var/folders/_z/92s1vys544s4xpzwqnhgfss00000gn/T//ccurrBxy.ltrans0.ltrans.o: In function `loop':
/Users/dermodwood/Documents/Arduino/MAX6675/MAX6675/MAX6675.ino:22: undefined reference to `MAX6675::readCelsius()'
/Users/dermodwood/Documents/Arduino/MAX6675/MAX6675/MAX6675.ino:24: undefined reference to `MAX6675::readFahrenheit()'
collect2: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino/Genuino Uno.

This report would have more information with
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