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Calendar not importing .ics

Calendar is not accepting .ics invites. Here's the scenario:


I receive an email invite to a meeting (they use outlook exchange). I quicklook the .ics file to check the date/time/etc... It's all correct. I then double-click the .ics file and iCal (now Calendar) opens. Nothing happens: it doesn't add the file, move to the day of the event, etc...


This only happens occasionally and it's driving me nuts. Most of the time meeting invites work, but every so often they won't. Or they will but then any updates won't be accepted.


Any thoughts?


(I'm on a MacBook Pro 15'' that's a few years old, running 10.8)

Posted on Aug 1, 2012 8:51 AM

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96 replies

Oct 9, 2012 7:09 AM in response to rpmca

I have the same problem, except that for me it is consistent. Everytime I try to import and .ics invite from email, focus moves to iCal, and then iCal asks me to accpet an invitation from a random event in the past.

Two questions:

Is there a fix in sight for this, or has Apple decided that every other calender is wrong?

Is there a good calender app which also works well offline (I would use google exclusively, but sometimes

I am not on line)..

Oct 9, 2012 8:14 AM in response to IanBearden

It's consistent for me as well. In fact the only thing that is not consistent is what meeeting in the past that it randomly selects.


The issue is with mail I think not iCal. When you click on the link in mail it somehow corrupts the content of the ics.


A temporary workaround is to drag the ics from mail to iCal. This will populate it with the correct info.


I'm sure apple will fix it it is just a matter of waiting for an update.


I myself am suffering through three issues that are a major pain in the neck


1. Calender invites not working properly (this is a big deal I use this everyday)

2. Random freezes after waking from sleep. (This is actually catastrophic for a work machine)

3. Some issue with my backlight spamming my error log (I've had to shut off automatic brightness adjustment)


After using ML for a while I have discovered there is really not that much new in it that I need at all... conversly there are a ton of bugs. I am seriously thinking of rolling back to Lion I am just put off by the fact it will take me all night to do it.

Oct 9, 2012 8:27 AM in response to rpmca

I have the same problem. However, if I create an event in iCal on my MB Air running Lion and send it to my iMac running Mountain Lion, it works properly. The files that I'm having trouble with were created in Outlook. When I download the .ics file and analyze at this website: http://icalvalid.cloudapp.net/Default.aspx

It tells me that the file has problems - warnings and an error. A file created in iCal does not have an errors and only one warning. Therefore, the issue is arguably Apple's since it worked in 10.7, however Microsoft is a notorious violator of standards, so I speculate that Outlook is creating non-standard .ics files.

Oct 18, 2012 10:49 PM in response to rpmca

I have almost the same problem.


Two Macs running 10.8.2. One is mine and one is my wife's Macbook. I'm running iCloud. My wife is not.


When I create an event in Calendar and invite anyone, the invitation is registered but not email is sent out! AGH!


Do we have a setting set wrong? Or has Apple introduced a bug?


Need a fix and soon, so I can rely on invitations again!

Nov 12, 2012 5:20 PM in response to prc62

That's a bold move prc62; and one that runs totally contrary to Apple forcing us to move all of our data into iCloud.


I was guessing that was the source of the problem; but with no other solution, I may just follow your example.


When I upgraded to Mountain Lion, it appears that a whole lot of my calendars were sucked into iCloud whether I wanted that or not. I've always preferred to have my Calendars On My Mac; because there have been numerous other problems over the years when that was not the case.


BTW, for others with this problem.. with 10.8 (Mountain Lion) Calendar issues this message whenever I add an .ics-based event (more likely for me from a web page such as a webinar reminder, than an emailed event)...


"Calendar can't read this Calendar file. No events have been added to your calendar." If I open the .ics files in a text editor, they look perfectly normal.


I've been soooo disappointed in what's happened to Apple's core apps with each "improvement". Functionality disappears (iCal/Address Book), the app gets uglier and harder to use (again Calendar/Contacts), huge amounts of data couldn't be imported to the "upgraded" app from the previous version (Mail), and so on.


If Apple can't genuinely improve these apps, I wish they'd leave them alone instead of crippling them.


Obviously this rant isn't going just to you prc62. It's a general problem.

Nov 29, 2012 6:37 AM in response to rpmca

For whatever it's worth, I did come up with a partial fix to the problem I was having. My issue was iCal bringing up random past meeting invites instead of the current one when I clicked on it form mail. Instead of double-clicking on the ics file in the email, I detatched it (to my desktop) and then double-clicked the .ics file from there.


That would suggest to me that perhaps there's an issue with the way mail is handling temporary storage of attachments. But that's just a guess.

Dec 10, 2012 3:37 PM in response to rpmca

I have a MacBook Pro running 10.8.2 and can intermitently import (ics) calendar invites. What is odd is that if you look at the "quick look" in mail, it looks perfect. Then when you go to import it, it picks a random date getnerally 1-2 years in the past and the text may completly unrealted or not complete. Has anyopne opened a ticket to resolve this? Please let me know becuase I'm about to and will refrrence back to it to help us both in resolution...

Calendar not importing .ics

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