After migrating from MobileMe to iCloud, I ran into a nasty situation where iSync/MobileMe sync thought I had data conflicts but I couldn’t resolve them.
The way the Conflict Resolver dialog appears and acts is a nightmare. When it appears, it hangs for a good 30 seconds, spiking the CPU and not allowing itself to be clicked on or dismissed. Then when you do tell it to go away (Resolve Later), it pops up again in the same infuriating state a few minutes later.
With the conflicts failing to resolve and this appearing every few minutes, my machine was completely unusable.
The solution to this (according to my experience and everything I found in my web searches) is to go into MobileMe and reset sync data. Pretty simple, except that feature is no longer available once you migrate to iCloud.
I tried rebooting, etc. to no avail.
Ultimately I dug into my Library/Preferences folder and looked for anything with ‘sync’ in the name. I could see in Activity Monitor that there was an iCalExternalSync process (I didn’t write down the name, it was close to that if not exact) working hard, so I manually trashed the following files:
- iCalExternalSync.plist
- iCalExternalSync.plist.lockfile
That did the trick.
Hopefully of use to the next person who runs into this issue.
How to Reset Sync Data after Migrating from MobileMe to iCloud – thanks you @alexkingorg http://t.co/RDb3rV9s
I am guessing your fix is for a Mac, any idea where the file is kept on a PC? The transisition has been far from painless. Judging by all the posts already, Apple missed this one MobileMe at least allowed us to keep our catigories for contacts. Most of my calendar data comes across but not all on the PC side. It properly shows on the Mac and iPhone.
Any insites would be great.
Hello Alex,
I am very grateful to for for this tip https://alexking.org/blog/2011/10/14/how-to-reset-sync-data-after-migrating-to-icloud to deal with my crashing mac after my “upgrade” to Lion and iCloud.
I had four files with iCalExternalSync and plist variations, so I tried to turn off calendar syncing in iCloud, moved them all to the trash. When I returned to system preferences, for some reason calendar syncing was still on. So, I turned it off again, it asked if I wanted to delete the calendars on my computer and I said yes. I then turned calendary syncing back on. It took over half an hour to rebuild my calendars, but at the end of that those icalsync processes are no longer visible in Activity Monitor (previously they were cycling between 50 and 112% of CPU cycles). Fantastic!
I was having a similar problem with the “Mingler” process, but used a parallel process from TidBITs to take care of that problem: http://tidbits.com/article/12796.