我正在使用DDay.iCal库创建.ics文件，以便在iPhone，iPad和Mac上导入iCal。我已经能够很好地创建文件，但是当我尝试将其导入上述任何设备上的iCal时，我收到通用错误“iCal无法读取此文件，没有事件添加到您的日历中。”
以下是.ics文件的内容：
BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
PRODID:Local Ruckus 04508292-17ee-4721-ab6d-f6ea49f972d0
BEGIN:VEVENT
DESCRIPTION:Our Miller Lite Hot Country Nights concert series presented by
Q104 is back for its 5th year!Shows begin around 7pm. Get here early to cl
aim your spot! Free and open to public of all ages. Under 21s MUST be acco
mpanied by a legal guardian and must arrive before 9pm. Venue is 21+ after
9pm.
DTEND:20120823T230000
DTSTAMP:20120823T213408Z
DTSTART:20120823T190000
SEQUENCE:0
SUMMARY:Hot Country Nights Concert Series
UID:de56c779-63c0-4dc5-b532-4b5a1d31f5ec
END:VEVENT
END:VCALENDAR
有人可以帮我弄清楚这个档案有什么问题吗？
由于