使用php中的ics文件删除日历邀请

Question

I want to delete(cancel) the calender event using ics file. But when i create a ics file to delete the event my outllok shows the alert saying "The ICS attachment can't be viewed beacuse it contains an item that is not calender related".

My ics file is -

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//hacksw/handcal//NONSGML v1.0//EN
METHOD:CANCEL
BEGIN:VEVENT
DTEND:20190211T092800Z
UID:f4efcbecf5fbe46d344cc6d494902ed6
DTSTAMP:1549909455
LOCATION:gurgaon
DESCRIPTION:simple
SEQUENCE:1
STATUS:CANCELLED
URL;VALUE=URI:mydomain.com/events/
SUMMARY:simple
DTSTART:20190211T062800Z
END:VEVENT
END:VCALENDAR

Please help me in this issue