Thanks. Currently nextAsync require one bool parameter (whether to increase skip count or not), but for a next build we will make it optional. Added as [url=http://www.ventismedia.com/mantis/view.php?id=13945]13945[/url].

actions.rate0 = {
    title: 'rate0',
    hotkeyAble: true,
    execute: function () {
        app.player.nextAsync();
    }
}

I get an exception with following code:

app.player.nextAsync();

it's defined in an custom action:

[code]
actions.rate0 = {
title: 'rate0',
hotkeyAble: true,
execute: function () {
app.player.nextAsync();
}
}
[/code]

log: http://pastebin.com/8TAuBMp1