ERROR: /node/free: Node 34 not found

[toxasma]

title/subject is the error message i get when running the following code (example 20-7 from learning processing, 2nd edition by daniel shiffman):
i'm running processing 3.3.7 in os x el capitan version 10.11.6 on a mid-2015 mac book pro.

`import processing.sound.*;

SinOsc osc;
Env envelope;
int[] scale = { 60, 62, 64, 65, 67, 69, 71, 72 };
int note = 0;

void setup() {
size(200, 200);
osc = new SinOsc(this);
envelope = new Env(this);
}

void draw() {
background(255);
if (frameCount % 60 == 0) {
osc.play(translateMIDI(scale[note]), 1);
envelope.play(osc, 0.01, 0.5, 1, 0.5);
note = (note + 1) % scale.length;
}
}

float translateMIDI(int note) {
return pow(2, ((note-69)/12.0))*440;
}`

[bnew]

I'm having similar issues trying to do basic sound file io. I'm mostly getting this:

ERROR: /node/free: Node id -1 out of range

On mac 10.12.6 and processing 3.3.7

[tawAsh1]

i'm also getting this "ERROR: /node/free: Node id -1 out of range".
On mac 10.13.1 and processing 3.0b6.

I think the cause of the problem is that the handling of m_nodeId is strange in SoundFile.java.
We need to consider about how to control the sound when we play two or more sounds.

	public void stop(){
		// if(m_isPlaying == 1 && m_nodeId[0] != -1) {
		// 	m_engine.synthStop(m_nodeId);
		// 	for(int i = 0; i < m_nodeId.length; i++)  {
		// 		m_nodeId[i] = -1;
		// 	}		
		// }
		m_engine.synthStop(m_nodeId);
		for(int i = 0; i < m_nodeId.length; i++)  {
			m_nodeId[i] = -1;
		}	
		m_isPlaying=0;
	}