An unexpected error has occurred. Please quit and reopen Keynote.

It is now 2017 I started to get this error as well.

I run Macos 10.13.1

It seems that Keynote makes no notice of this bug.

It does not collect information to send to Apple as I see it.

I get the error with all my keynote presentations.

om iPad it works fine !!!!!

I can convert the document to PDF and view from there ... it works

/Anders

Keynote 5.3 does not work in Mac OS 10.13 High Sierra, the latest Mac OS requires 64 bit Apple applications, Keynote 5.3 is 32 bit. If you need Keynote it must be the latest version 7.3.1.

Keynote for iOS is a completely different application from the Mac version.

There are a few issues with the latest version of Keynote running on Mountain Lion.

The following routine resets the installation of Keynote and sorts out many of the issues users are having at the moment.

1

Uninstall all of iWork if you have this, otherwise uninstall Keynote if other iWork applications are not installed.

Use the free application Appcleaner to do this as it will remove the applications properly. It can be downloaded here: Appcleaner Download

2

empty the trash

3

Reinstall Keynote or iWork using the original method on purchase using the installer file or installed from the App Store

4

shutdown the Mac and restart holding down the shift key until the apple logo appears

let the Mac complete the start up procedure completely, it will take longer to start as it is repairing software on the hard drive

5

go to Applications > Utilities > Disc Utility > First Aid > Repair Disc Permissions

when this is completed restart the Mac normally

Let us know how you get on

I did steps 1 to 3. However, when I restart the Mac holding down the shift key the Mac does not complete the strat up procedure in any reasonable amount of time.

I reinstalled Mountain Lion, removed iWork with appcleaner, reinstalled iWork 9.0 from CDs, updated iWork to the latest version (iWork 9.3), and the problem is still there: when I start keynote and I try to save the file I get "An unexpected error has occurred. Please quit and reopen Keynote."

I got the same problem

Did all the steps, but unfortunately the problem is still here. Disk Utility repaired some permissions though.

Any more thoughts on how to fix this?

Thanks a lot Yes I'm running Keynote 5.3

It would have been be nice that the system told this in a more pro active way.

Good there is an answer :-)

, thanks again

/Anders

I can actually see that I got 7.3.1 - it was just in my DOCK that I got this old one 😝