Time capsule back up
Hi,
My time capsule is refusing to back up, instead showing the following error message:
"Time Machine couldn't complete the backup to your Time Capsule.
The backup disk image "/Volumes/Data/Mark Powell's Macbook Pro.sparsebundle" could not be accessed
(error (null))."
Can anyone suggest a remedy?
Thanks.
MacBook Pro, OS X Yosemite (10.10.4)