【发布时间】：2022-08-14 09:48:40
【问题描述】：
我正在尝试为某些事件手动生成 .ics。该文件正在 Windows Outlook 和日历上打开，但是当我尝试在移动版谷歌日历中打开该文件时，它显示“无法打开文件”。有人能告诉我这个文件有什么问题吗？
文件内容：
BEGIN:VCALENDAR
X-LOTUS-CHARSET:UTF-8
PRODID:-//Adarsh Test Calendar
VERSION:2.0
METHOD:PUBLISH
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:c8d1a181-3bc1-4efb-8d73-1cabdd4cd42f
CATEGORIES:None
CLASS:
SUMMARY:Flight from Singapore to Hong Kong
DESCRIPTION:SQ Singapore Airlines SQ894 Economy class
LOCATION:Singapore \\, Singapore Changi Airport \\,
PRIORITY:0
STATUS:CONFIRMED
DTSTART:20220507T050500
DTEND:20220508T090500
TRANSP:OPAQUE
CREATED:20220418T165905Z
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER;VALUE=DURATION:-PT24H
DESCRIPTION:Do not forget to check-in for your flight
END:VALARM
END:VEVENT
BEGIN:VEVENT
UID:ff559bcb-4468-4886-86a1-27777850b07a
CATEGORIES:None
CLASS:
SUMMARY:Flight from Chennai to Singapore
DESCRIPTION:6E IndiGo Airlines 6E112 Economy class
LOCATION:Chennai \\, Chennai International Airport \\,
PRIORITY:0
STATUS:CONFIRMED
DTSTART:20220429T220000
DTEND:20220429T213000
TRANSP:OPAQUE
CREATED:20220418T165905Z
BEGIN:VALARM
ACTION:DISPLAY
TRIGGER;VALUE=DURATION:-PT24H
DESCRIPTION:Do not forget to check-in for your flight
END:VALARM
END:VEVENT
END:VCALENDAR