Simulator/device does not sync with iCloud

Question

From time to time I'm getting errors that my iOS 8 device or simulator will sometimes not sync with iCloud (Drive). The following message appears (multiple times) in the output log:

CoreData: iCloud: Error: failed to receive initial sync notification call back in 90 seconds

Only reinstalling the app helps. Has anyone experienced the same issue or got some information about this?

Answer 1

I have seen that error (today) on an iPad running iOS 8. I fixed it by performing a reset (hold power and home/sleep buttons until the Apple logo appears). After that when I reran my app it synced immediately.

For the simulator it may be sufficient just to quit the simulator and relaunch. However, I have seen cases where restarting the computer was required.

I'm not sure what the cause of the issue is but hopefully the above help.