Calendar Invitation Error

1. I did not have this reoccurring error until after the last update.
2. I spent 30 minutes waiting for Apple Tech on the phone. The higher level tech had no fix. Blamed exchange and google mail.
3. I just tried the work around above and it did not work either.
4. Very annoying and takes the "smart" out of smart phone.
5. Apparently it is happing with iPhone X too.

Come on Apple engineers...lets get this fixed...

I have this question too. I tried shuting off iCloud for Contacts, Calendars and Reminders, waiting five minutes, rebooting, but the pop up error persists. I do not have an exchange account, only Microsoft Network.

This is ridiculous. From A to Z

• Not being able to fix this right away without refreshing the whole account.
• Continuing to try to send the response after weeks of attempts. Just why?
• If the phone is idle for 2-3 hours after opening you will have to go through the 5-10 messages about failed delivery. Why not one?

Poor craftsmanship. And devs at apple earn 400k per year...

I tried this twice, rebooted and still get the error. It's becoming increasingly annoying! I am on IOS 11.0.3. Help!!!!

I'm still having the error several times a day. I downloaded the new ios 11.1.2 and still getting the error. Very frustrating and I wish Apple would address this issue.

I never had this problem until 1 week ago when I installed 11.1.2. Highly annoying as it occurs multiple times per hour. Apple - please fix ASAP.

I tried all of the above, I restarted the phone - but nothing helps. It's so annoying..

I'm still having the issue also. I would hope that apple would step up to the plate by now!!!

My phone just started this same message today! I upgraded a week ago! Nothing I’ve read from others works!

This worked for my iPhone 8. Thank you!!!

It worked! Thank you SO much for posting this. Solved months worth of annoyance.

I’m getting this too and turning Cal off in iCloud did not work! Hey Appe maybe you should just give everyone a new battery instead of discounting to passify this new issue!

I am having exactly the same problem and I do not want to lose my contacts either. How do I resolve this?

Thank you so much! This fixed my problem straight away. Apple should pay you something.

This fixed my problem! Thank you!