Time machine couldn't backup

Time Machine Failed to Backup

After updating to Mojave my time machine will no longer backup to my external or airport extreme. I get the following error in time machine and I have also copied the logging errors. Does anyone know how to fix this?

Failed to remove attribute 'com.apple.backupd.SnapshotVolumeFSEventStoreUUID' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"

Failed to remove attribute 'com.apple.backupd.SnapshotVolumeLastFSEventID' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"

Failed to remove attribute 'com.apple.backupd.SnapshotVolumeUUID' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"

Failed to remove attribute 'com.apple.backupd.PreviousSnapshotVolumeUUID' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"

ailed to remove attribute 'com.apple.backupd.PreviousSnapshotVolumeName' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"

Failed to remove attribute 'com.apple.backupd.VolumeBytesUsed' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted”

Failed to remove attribute 'com.apple.backupd.VolumeIsCaseSensitive' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"

Failed to remove attribute 'com.apple.backupd.fstypename' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted”

Failed to remove attribute 'com.apple.backupd.VolumeIsEncrypted' from 'file:///', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted”

Starting age based thinning of Time Machine local snapshots on disk ‘/'

Failed to write unlock record UUIDs as extended attribute for disk '/', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted”

Failed to create APFS snapshot with name 'com.apple.TimeMachine.2018-11-24-224728' on volume '/', error: Error Domain=NSPOSIXErrorDomain Code=16 "Resource busy”

Failed to create local snapshots

Failed to create or mount stable snapshot.

MacBook Pro with Retina display, macOS Mojave (10.14.1)

Posted on Nov 25, 2018 9:33 AM

Top-ranking reply

YeOldMacFan

Level 3

820 points

Posted on Nov 25, 2018 2:52 PM

If you happen to have App Cleaner & Uninstaller installed and recently upgraded to version 6.0 then the problem is likely due to a bug in that app. The link below is to their website; the instructions given there fixed my Time Machine error that you mentioned above. Also note that Nektony claims that v6.2 of AC&U fixes the problem. I've uninstalled their app so I can't verify that.

https://nektony.com/mac-app-cleaner/troubleshooting

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Time machine couldn't backup

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