Java.lang.IllegalArgumentException: Event values ​​must include an eventTimezone

I m developing a app which need to add events to the native calendar in android. I followed :

this is the code of addEvent() method I tried(which is exactly same in first tutorial)

public void addEvents()
        long calId = getCalendarId();
        if (calId == -1) {
            // no calendar account; react meaningfully
        Calendar cal = new GregorianCalendar(2012, 11, 14);
            cal.set(Calendar.HOUR, 0);
            cal.set(Calendar.MINUTE, 0);
            cal.set(Calendar.SECOND, 0);
            cal.set(Calendar.MILLISECOND, 0);

        long start = cal.getTimeInMillis();
        ContentValues values = new ContentValues();
                    values.put(Events.DTSTART, start);
                    values.put(Events.DTEND, start);
                    Log.i(LOGTAG,calId+" before titile");
                    values.put(Events.TITLE, "Some title");
                    values.put(Events.EVENT_LOCATION, "Munster");

                    Log.i(LOGTAG,calId+" cal ID");
                    values.put(Events.CALENDAR_ID, calId);

                Log.i(LOGTAG,calId+" timezone");

                    **values.put(Events.EVENT_TIMEZONE, "Europe/Berlin");**
                          "The agenda or some description of the event");

This code gives "java.lang.IllegalArgumentException: Event values must include an eventTimezone"

I tried many solutions found in google but nothing could solve this problem..

Try this:

values.put(CalendarContract.Events.EVENT_TIMEZONE, TimeZone.getDefault().getID());