Do you get this iOS Calendar error popup constantly? The error message says: “Calendar Invitation. Your response to the invitation cannot be sent” (see the image below). You tap OK but a few minutes later this pops up again? It is highly likely that you are getting this error because you responded (accept or reject) to a calendar invitation, and your response, for some reasons, could not be sent and thus you keep getting this notification.
This article explains how you can troubleshoot this error. If you are having this issue as well, this article will help you fix it:
See also: Can’t Remove iOS Apps
Calendar Invitation Error
Please try each fix until you resolve your problem:
- On your iOS device, iPad or iPhone, tap Settings > Your Name > iCloud
- Toggle off “Calendars”
- Wait a few minutes
- and then turn “Calendars” back on.
- Update your iPhone to the latest version of iOS software. Here is how:
- Tap Settings > General > Software Update and if there is an update available, follow the directions to update your phone.
- On your device, tap Settings > Passwords & Accounts
- Then select the account (under the accounts section) Note: Select the account that linked with Calendar (iCloud, Exchange, Gmail etc)
- Slide to turn off “Calendars”. You will be asked to confirm, it will read “Are you sure you want to continue? All calendars will be removed from your iPhone” Tap the red Delete from my iPhone icon to confirm your selection. Do not worry, we will turn this on later and your calendar will sync again.
- Now turn off your device (you can do so by going to Settings > General > Shut Down)
- Turn your device on
- And turn Calendars back on.
- You may want to repeat this process for the other accounts also that you have on your device.
- Force close the Calendar app and reopen again. Here is how:
- If your device has a Home button then double press the Home button. This action will bring up the most recently used apps. Find the Calendar app (you may swipe right or left). Swipe up to close it. If your device does not have a Home button then swipe up from the bottom of screen and then find the Calendar app and swipe up to force close it. Then reopen it.
Please after each step, check to see if your issue persists.
If you performed all of the troubleshooting steps above, and if you are still experiencing this problem, you may want to contact Apple support. Apple Support offers live chat or Genius bar appointments.
Eduardo Vasconcelos says
December 19, 2018 at 1:33 pmgreat troubleshooting!!
Estela Nuñez says
January 3, 2019 at 12:34 amThe last option worked for me! You have no idea how long I had been trying to fix it. THANK YOU
Michelle L says
January 10, 2019 at 6:43 pmIt worked! Thanks.
Amanda Bowman says
January 15, 2019 at 4:05 pmThe passwords & accounts worked for me! Thank you so much for these tips. What an aggravation trying to use my phone when the error message popped up multiples times.
Hugh Coughlan says
March 4, 2019 at 2:12 pmDitto, very useful
Rude Bouy says
January 23, 2019 at 6:24 pmThat was good info. The email account (exchange) worked for me.
Abby says
January 30, 2019 at 3:49 amOption 3 worked for me. Thank you!
suviluvi says
January 31, 2019 at 4:02 pmNr 3 worked for me! Thank you!
Punky says
January 31, 2019 at 4:05 pmFIXED!!!!!! Thank you!!
Ryan says
February 2, 2019 at 6:42 pm3rd option worked. I was ready to throw my phone away. Thanks for the help!
Anne says
February 5, 2019 at 9:34 pmI think No. 2 actually WORKED – this error has been driving me nuts!
jean says
February 6, 2019 at 5:40 pmthis worked (option 3). Note that it takes forever for the calendar to sync back up to your iPhone–don’t panic
Ml says
February 8, 2019 at 3:22 amThank you!
Option 3 is the one to go with
It works
David H says
March 1, 2019 at 11:19 pmOption 3 worked.
Thanks much.
Cilla says
March 11, 2019 at 7:22 amI’ve tried all of them and it still does’nt work😞
kate says
March 12, 2019 at 3:13 pmNone of these worked for me.
Motiur says
March 13, 2019 at 3:25 pmThank you so much! It worked!
Neil says
March 25, 2019 at 9:49 amIt worked, thanks
Vineet says
April 8, 2019 at 8:44 pmOption 3 worked for me.
Peg says
April 17, 2019 at 5:04 pmThanks so much–it worked!
Douglas Tondo says
April 24, 2019 at 2:41 pmThanks, Step 3 worked for me.
Pamela Schallhorn says
April 29, 2019 at 1:55 pmStep 3 worked for me! Thanks