If anyone else has this issue I managed to restore my documents from my time machine backup, I had to go back to late August to get a version which worked but I got them back so that's great.
I was listening to the Mac Power Users podcast and they brought up a similar problem followed the linked and solved my problem.
This is the link for the instructions http://www.desparoz.com/2012/08/14/backups-of-icloud-documents-in-the-cloud/
Thanks to Des Paroz On The Go for the solution and for the mac power users podcast for the link from their show notes.
Did you and your IT guy find out anything else about the '“Document name” cannot be converted. Please install a newer version of iWork.' error message, other than missing extensions in iCloud?
The reason I ask is that I am getting the same message, but in different circumstances, and this thread is the only place I found the error message by seaching with Google, so I am somewhat clutching at a straw.
I get the message from time to time when copying my entire Time Machine backup to a new (larger) drive, following Apple's instructions. I am guessing that something in the TM backup is corrupted, but this is nothing to do with iCloud.
I thought I could get around these errors by using Disk Utility to duplicate my TM backup volume using the restore function, but after over a day of copying, I got the error: 'Restore failure Could not restore - Device not configured', and I found nothing helpful on that via Google, hence this message to you.
My whole problem was, somewhere along the line iCloud was loosing the extension and then would give all the errors, all I had to do was open pages or numbers and add the extension to all the documents that wouldn't open, this happens every now and again but adding the extension always fixes it.
Thanks for your prompt response Jason. I went to my local Apple Genius bar, and the Genius hadn't a clue why I would be getting this error message when copying a Time Machine backup. The "document name" was actually in the format of Boot Cache folders, so I do not understand how it would relate to your problem, but it generated the same error message!
I guess I will have to start Time Machine backups from scratch on my new drive, and keep the old drive as a paperweight in case I ever need it to restore an old file, which is the big point of Time Machine.
Well, I could not really follow them, as they are not applicable in my case.
Firstly, it is the Time Machine backup that is apparently causing Finder Copy to generate these error messages, so I cannot fix the problem by restoring from TM backup…
Secondly, the file/folder name in each "…cannot be converted. Please install a newer version of iWork" error message (e.g., "160A53F9-8514-4BE1-95C8-9BAFE5041EDC"), was not recognizable to me, and neither Finder/Spotlight search nor my manual search through the Mobile Documents folder found it. I even did a manual search through an entire TM backup for one date and failed to find it, or anything with a similar format, other than Boot Cache folders.
Any progress on the 'copy your Time Machine backup' version of this issue? I started getting these errors 12 hours into a 24 hour copy… and eventually the copy failed.
Funny, I had the same symptoms, 12 hours into a 24 hour copy, too. (example below)
“D705B42B-AB04-4C16-9887-922B8A083A8E” cannot be converted. Please install a newer version of iWork.
The operation can’t be completed because you don’t have permission to access some of the items.
The operation can’t be completed because an unexpected error occurred (error code -8062).
What I noticed was that, despite following HT5096 correctly, I was not asked to enter Admin password at the beginning of the copy. I run in Admin all the time, and Disk Utility asked me for Admin password and Finder asked me for Admin password when I unchecked ignore ownership.
I'm VERY interested in why the copy process believes it's CONVERTING these iWork documents. And naturally I'm running what App Store tells me is the latest iWork.
Previously, I'd always just started another backup on new drives… I guess I'll be doing that in future too, as the well meaning HT wasted 12 hours. Sadly, I don't seem to be able to submit feedback on the HT, either.
I posted these comments to a newer discussion, more specific, but not much activity.