Recurring Events in SharePoint Calendar - C#

Hello all,

I am trying to populate recurring calendar events from a workflow.

I have been following these articles, which explain exactly what I am trying to achieve:

http://ift.tt/1nM5c4U

http://ift.tt/1npsz61

I have followed all the steps listed, but as soon as the workflow is triggered it reports an "Error Ocurred" message.

I have looked into the 14\log file, but I cannot get any clue from it.

Can anyone give me a hand with it? any help debugging it?

This is the defined class:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
using Microsoft.SharePoint;
using Microsoft.SharePoint.UserCode;
using System.IO;

namespace CreateCalendarRecurrence
{
    class CreateCalendarRecurrenceEvent
    {
        public Hashtable CalendarRecurrenceEvent(SPUserCodeWorkflowContext context, string eventTitle, string recurrenceRule)
        {
            Hashtable results = new Hashtable();
            int iYear = 0, iMonth = 0, iDay = 0;
            results["Except"] = string.Empty;
            try
            {
                using (SPSite site = new SPSite(context.CurrentWebUrl))
                {
                    using (SPWeb web = site.OpenWeb())
                    {
                        iYear = DateTime.Now.Year; iMonth = DateTime.Now.Month; iDay = DateTime.Now.Day;
                        DateTime startTime = new DateTime(iYear, iMonth, iDay, 8, 0, 0); //
                        DateTime endTime = startTime.AddHours(6);
                        SPList cal = web.Lists["CalendarTest"];
                        SPListItem calEvent = cal.Items.Add();
                        calEvent["Title"] = eventTitle;
                        calEvent["RecurrenceData"] = recurrenceRule;
                        calEvent["EventType"] = 1;
                        calEvent["EventDate"] = startTime;
                        calEvent["EndDate"] = endTime;
                        calEvent["UID"] = System.Guid.NewGuid();
                        calEvent["Recurrence"] = 1;
                        calEvent.Update();
                    }
                }
            }
            catch (Exception ex)
            {
                results["Except"] = ex.ToString();
            }
            return results;
        }
    }
}

Let me know if would be beneficial to attach any other file or .log

Thanks in advance.