Why do I get "iCal can't read this calendar file. No events have been added to your iCal calendar." when I am trying to sync an Apple Workshop appointment?

I made a reservation for an Apple store workshop, but when I try to open the download in iCal (Lion) , I keep getting an "iCal cannot read this calendar file." message. Very frustrating. Any insights would be appreciated.
Thanks,
Bmoregirl

Greetings,
What version of the Mac OS and what version of iCal are you running?
Are you using MobileMe calendars (or any other server based calendars like Google) in your iCal?
While you answer those questions you can try the following troubleshooting:
1. First make an iCal backup: Click on each calendar on the left hand side of iCal 1 at a time highlighting it's name and then going to File Export > Export and saving the resulting calendar file to a logical location for safekeeping.
2. Remove the following to the trash and restart your computer:
Home > Library > Caches > com.apple.ical
Home > Library > Calendars > Calendar Cache, Cache, Cache 1, 2, 3, etc. (Do not remove Sync Cache or Theme Cache if present)
Home > Library > Preferences > com.apple.ical (There may be more than one of these. Remove them all.)
---NOTE: Removing these files may remove any shared (CalDAV) calendars you may have access to. You will have to re-add those calendars to iCal > Preferences > Accounts.
Once the computer is back up and running open iCal and test.
Hope that helps.

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"iCal can't read this calendar file. No events have been added to your iCal calendar."

How do I deal with this error message-"iCal can’t read this calendar file. No events have been added to your iCal calendar." ? .ics vs .vcs?
Thanks

Greetings,
What version of the Mac OS and what version of iCal are you running?
Are you using MobileMe calendars (or any other server based calendars like Google) in your iCal?
While you answer those questions you can try the following troubleshooting:
1. First make an iCal backup: Click on each calendar on the left hand side of iCal 1 at a time highlighting it's name and then going to File Export > Export and saving the resulting calendar file to a logical location for safekeeping.
2. Remove the following to the trash and restart your computer:
Home > Library > Caches > com.apple.ical
Home > Library > Calendars > Calendar Cache, Cache, Cache 1, 2, 3, etc. (Do not remove Sync Cache or Theme Cache if present)
Home > Library > Preferences > com.apple.ical (There may be more than one of these. Remove them all.)
---NOTE: Removing these files may remove any shared (CalDAV) calendars you may have access to. You will have to re-add those calendars to iCal > Preferences > Accounts.
Once the computer is back up and running open iCal and test.
Hope that helps.

I haven't added events but am getting "This calendar is unreadable. No events have been added to your iCal calendar"

I recently started getting the message "This calendar is unreadable. No events have been added to your iCal calendar". However, I typically add my events by typing them myself either on my MacBook Pro or my iPhone. I don't import from outside sources. I don't know if it's related or just coincidental that around the same time, events that I add to my MacBook Pro are not syncing to my iPhone, but the events added by iPhone seem to appear on my MacBook Pro and my MiniMac. Is there a way to find the event that is being referenced in this error message??

iPhone:
Plug in your iPhone
Go to iTunes > Your iPhone > Info and ensure that calendars is not checked off to sync -- if you are using MobileMe to sync, this option should not be checked
On both Macs:
1.) Go to Apple > System Preferences > MobileMe > Sync and remove the check Mark for calendars. With the new MobileMe calendar system there is no need to have this checked. Close the MobileMe window once this is complete.
2.) Open iCal and then go to iCal > Preferences > Accounts and remove the MobileMe account from here with the minus sign.
3.) Go to iCal > Quit iCal
4.) Remove the following to the trash and restart your computer:
Home > Library > Caches > com.apple.ical
Home > Library > Calendars > Calendar Cache, Cache, Cache 1, 2, 3, etc. (Do not remove Sync Cache or Theme Cache if present)
Home > Library > Preferences > com.apple.ical (There may be more than one of these. Remove them all.)
5.) Open iCal and go to iCal > Preferences > Accounts
-- If the MobileMe Account is already here remove it again and then re-add it being very careful to use the correct name and password (for your 10.5 system follow these steps for re-adding: http://support.apple.com/kb/HT4330)
-- If the MobileMe account is not already here, add it in.
iCal will download your calendars from the MobileMe server. Watch and see if you get the error message. If it completes the download (little spinning gear stops spinning next to the MobileMe calendar) go ahead and add a new uniquely named event to one of your MobileMe calendars on both computers and see if it syncs between.
Let us know what happens.

.ics file error : "iCal can't read this calendar file."

I would like to add my flight itinery to my iCal. Downloaded the .ics file from the BA website. When double clicking on it and dragging it to iCal this message pops up: "iCal can’t read this calendar file. No events have been added to your iCal calendar."
file details:
BEGIN:VCALENDAR
PRODID:-//Ben Fortuna//iCal4j 1.0//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
I also tried converting it to .vcs. Then iCal asks which calender I would like to add it to but still comes up with above message.
Any ideas?
Thanks.

Hi!
I managed to import the file when I deleted everything that had to do with HTML code at the end of the file. I'm not exactly sure about the purpose of this code, but deleting it left me with my flights inside my calendar, exactly as I wanted.
HTH,
Michael

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Fix for tiresome, "iCal can't read this calendar file. No events have..."

I've read a hundred posts about this problem, but the typical answers--erase blank space at the top of the file, rename the file "ics", etc. don't work.
When I attempt to open a calendar file from Delta.com and many other websites, I get this error:
5/11/10 1:53:32 PM iCal[6522] Incorrect version for vCal file. Got '2.0'
5/11/10 1:53:32 PM iCal[6522] Fatal vCalendar parser error !
If I go in and change the version to 1.0, I get this error:
5/11/10 1:55:09 PM iCal[6522] Date validation error: DTSTAMP = '20100511T165324Z '
5/11/10 1:55:09 PM iCal[6522] Date validation error: DTSTART = '2010-06-01T14:10:00.000Z '
5/11/10 1:55:09 PM iCal[6522] Date validation error: DTEND = '2010-06-01T22:13:00.000Z '
5/11/10 1:55:09 PM iCal[6522] * WARNING Invalid component, discarding: Error Domain=com.apple.iCalendar Code=1000 UserInfo=0x1158d19f0 "DTSTART is required for VEVENT."...To add your full itinerary to your Outlook calendar, choose save to download the file to your computer and then import it from within Outlook. For more information, please see the Help section of Microsoft Outlook.=0D=0A
5/11/10 1:55:09 PM iCal[6522] Date validation error: DTSTAMP = '20100511T165324Z '
5/11/10 1:55:09 PM iCal[6522] Date validation error: DTSTART = '2010-06-05T11:00:00.000Z '
5/11/10 1:55:09 PM iCal[6522] Date validation error: DTEND = '2010-06-05T19:50:00.000Z '
5/11/10 1:55:09 PM iCal[6522] Unexpected EOF, returning last token as fallback
5/11/10 1:55:09 PM iCal[6522] Component boundaries mismatch (VEVENT VEVENT
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Any ideas?
Thanks!

Hi,
There are various reasons why iCal won't read that file.
1. Spaces at the end of lines (eg after the last "END:VEVENT"). I'm not sure if this is incorrect, but iCal does not like it.
2. The format of some of the dates/times is incorrect. (see http://www.apps.ietf.org/rfc/rfc2445.html#sec-4.3.12 and http://www.apps.ietf.org/rfc/rfc2445.html#sec-4.3.4 if you're interested).
3. The UIDs for the two events are not unique. Perhaps this is something you edited? (see http://www.apps.ietf.org/rfc/rfc2445.html#sec-4.8.4.7 )
This works in my iCal:
BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook 11.0 MIMEDIR//EN
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20100512T133215Z
DTSTART:20100601T141000Z
DTEND:20100601T221300Z
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Omitted
LOCATION;ENCODING=QUOTED-PRINTABLE:Reagan National
SUMMARY;ENCODING=QUOTED-PRINTABLE:Your Itinerary: SFO-DCA
PRIORITY:1
UID:TKTNO-DELTA-11111111
SEQUENCE:0
BEGIN:VALARM
TRIGGER:-PT1440M
ACTION:DISPLAY
DESCRIPTION:Reminder
END:VALARM
STATUS:CONFIRMED
END:VEVENT
BEGIN:VEVENT
DTSTAMP:20100512T133215Z
DTSTART:20100605T110000Z
DTEND:20100605T195000Z
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:OMITTED
LOCATION;ENCODING=QUOTED-PRINTABLE:San Francisco Intl
SUMMARY;ENCODING=QUOTED-PRINTABLE:Your Itinerary: DCA-SFO
PRIORITY:1
UID:TKTNO-DELTA-11111112
SEQUENCE:1
BEGIN:VALARM
TRIGGER:-PT1440M
ACTION:DISPLAY
DESCRIPTION:Reminder
END:VALARM
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR
Best wishes
John M

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Why do I get "iCal can't read this calendar file. No events have been added to your iCal calendar." when I am trying to sync an Apple Workshop appointment?

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