Hi,
When I try to add 'File upload' addon under a fieldset, I get the above error.
$scope.form = [{ type: 'fieldset', title: 'Section', items: ['item1'] }]
where "item1": { "title": "Item1", "type": "string", "description": "", "format": "base64", "maxSize": "5242880" }
Please let me know if there is a workaround for this.
/P