@MikeB Thanks! It worked now! Apparently, I had to make sure all steps for enabling IPP are done right.

[Level:Beginner]
Hello!
I'm trying figure out how to make a non-repetitive round robin for each drum. So, I decided just to split drums into separate Sampler modules.

Then I made a script in each:
"on init"

const var SamplerOpen = Synth.getSampler("SamplerOpen");

SamplerOpen.enableRoundRobin(false);

reg counter = 0;
reg lastCount = 0; 

Next, to separate the round-robin counter for both each drums I though of cutting the note range for "onNote".
So, for one of my drums in the "onNote" section I tried:

function onNoteOn(60, 64)
{
	counter = (lastCount - 1 + Math.randInt(2, 5)) % 4;
	SamplerOpen.setActiveGroup(counter + 1);
	lastCount = counter;
}

and it gave me this error:
"Line 1, column 19: Found Literal when expecting ')'.

Does anyone know what's wrong here and what would be a better approach?