Error using Arduino IDE 2.1.0

[Rauchbier87]

Below is the error I get for the example ToneTest without any changes to code:

C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:11:17: error: 'NOTE_A3' was not declared in this scope
int notes[] = { NOTE_A3,
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:12:17: error: 'NOTE_B3' was not declared in this scope
NOTE_B3,
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:13:17: error: 'NOTE_C4' was not declared in this scope
NOTE_C4,
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:14:17: error: 'NOTE_D4' was not declared in this scope
NOTE_D4,
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:15:17: error: 'NOTE_E4' was not declared in this scope
NOTE_E4,
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:16:17: error: 'NOTE_F4' was not declared in this scope
NOTE_F4,
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:17:17: error: 'NOTE_G4' was not declared in this scope
NOTE_G4 };
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:20:1: error: 'Tone' does not name a type
Tone notePlayer[2];
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde: In function 'void setup()':
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:25:3: error: 'notePlayer' was not declared in this scope
notePlayer[0].begin(11);
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde: In function 'void loop()':
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:40:9: error: 'notePlayer' was not declared in this scope
notePlayer[0].play(notes[c - 'a']);
^
C:\Users\popey\AppData\Local\Temp.arduinoIDE-unsaved202343-1564-pbuhxs.f1njr\ToneTest\ToneTest.pde:57:28: error: 'NOTE_B2' was not declared in this scope
notePlayer[0].play(NOTE_B2);
^

exit status 1

Compilation error: 'NOTE_A3' was not declared in this scope