ICS File via Caldav Error

[dantekcs]

I am writing a new application that will intergrating calendaring in with my support tools. tried to test it and get a 400 error bad request.
Here is my ics file
BEGIN:VCALENDAR
VERSION:2.0
CALSCALE:GREGORIAN
PRODID:iCalendar-Ruby
BEGIN:VEVENT
SEQUENCE:0
DTEND:2009-11-20T17:00:00-08:00
DTSTART:2009-11-20T10:00:00-08:00
UID:77d4df70-b16a-012c-59e2-000bdb47b0e8
DTSTAMP:20091111T193621
\nReference Number: ------------------
\nFix Date Picker
SUMMARY:Job Event: Date Picker
BEGIN:VALARM
TRIGGER:-PT45M
ACTION:EMAIL
ATTENDEE:mailto:dhaanpaa@project14.mysmbhelpdesk.c om
SUMMARY:New Job Notification
\nReference Number: ------------------
\nFix Date Picker
END:VALARM
BEGIN:VALARM
TRIGGER:-PT15M
ACTIONISPLAY
SUMMARY:New Job Notification
END:VALARM
END:VEVENT
END:VCALENDAR

looked in the log and get ics parse error
what could be going on?
I have tested from both php webdav extension and cadaver webdav client.
I am naming the file 77d4df70-b16a-012c-59e2-000bdb47b0e8.ics