Re: Error 1220: Illegal Argument, please help!

Maybe you will get a clue from this:

var startRulerUnits = app.preferences.rulerUnits;

app.preferences.rulerUnits = Units.PIXELS; // tell ps to work with pixels

var tempWidth=100;

var tempHeight=100;

var myNewDoc = app.documents.add(tempWidth,tempHeight,72,"exportedLayer", NewDocumentMode.RGB,DocumentFill.TRANSPARENT);

app.preferences.rulerUnits = Units.PERCENT; // tell ps to work with percent

var myNewDoc = app.documents.add(tempWidth,tempHeight,72,"exportedLayer", NewDocumentMode.RGB,DocumentFill.TRANSPARENT);

app.preferences.rulerUnits = startRulerUnits;