Error when calling $$.json

[ro-ka]

I tried to retrieve a simple json document with the current quo.js from the website. But I keep on getting this error in line 38 (minified version):

Uncaught TypeError: Object #<Object> has no method 'call' 

The call I do is the following:

$$.json(location.href + 'sample.json', function(response) {
  console.log(response);
});

Retrieving the same document with this Ajax call works fine:

$$.ajax({
  url: location.href + 'sample.json',
  dataType: 'json',
  async: true,
  success: function(response) { console.log(response); },
  error: function(xhr, type) { console.log(xhr, type); }
});

[soyjavi]

The correct syntax is:

$$.json url, parameters, callback

$$.json(location.href + 'sample.json', {}, function(response) {
console.log(response);
});

[ro-ka]

Thanks! But we already switched to Zepto as I couldn't find a way to hand over parameters on Events. But the Framework looks promising! Will keep an eye on it.

[VittorioMobimentum]

Sorry for postin on this old thread but it's the only Google Results I've found and I have the same issue.
Using:
$$.json("local/data.json", {}, successCallback );
I get the same error:

Uncaught TypeError: Object # has no method 'call'
at quo.debug.js:212

Apparently it lacks of a default error callback function (I was using an invalid JSON :D).