?My time machine could not complete back up. Says backup disk image"/volumes/data/name's iMac.sparsebundle" could not be accessed error 1??

Lion issue..

Download 5.6 airport utility for Lion and use that not v6.

Go to the disk page of manual setup, disconnect all users..

Lion will then work.. somehow it gets stuck and won't correctly unmount.

See also Pondini

http://pondini.org/TM/C17.html

You can read or at least skim through the troubleshooting and FAQ.

http://pondini.org/TM/FAQ.html

This issue does have several causes.. although with Lion the main one is just a computer holding open the sparsebundle.

It's often suggested to also power-cycle the item after disconnecting all users.

I checked the pondini fixes and ended up doing the following - in case this could help someone else with OSX Lion and Time Capsule... http://pondini.org/TM/Troubleshooting.html

First, I downloaded and used Airport Utility 5.6 instead of 6.1 - BTW, I had to attempt download and installation THREE times before the program actually installed. Be persistant.

Pondini #5: It's possible some names (of all things!) may be a problem. See item C9. I had to re-name my Mac, Time Capsule, network, etc... to remove all apostrophes and spaces.

Pondini #7: If you have WD SmartWare installed on Lion, it's not compatible, per RoaringApps, and there are reports it can cause this problem as well. Use Western Digital's uninstaller, or delete the app from /Applications and the files com.wdc.WDDMservice.plist and com.wdc.WDSmartWareServer.plist from /Library/LaunchDaemons. There may also be a file in Library/Application Support.

I then had to shut down computer, unplug Time Capsule, unplug modem; plug everything in again, then reboot computer; then had to go to Apple- System Preferences- Network- and reselect my Time Capsule to connect to WiFi again.

Then opened Time Machine preferences again and attempted back up - it worked!

I have the exact same error message for the first time today July 11th, but I am running MAC OS X 10.6.8 and Airport Utility 5.6.1 on a MacBook Air

Does anyone have any suggestions to help me resolve the problem?

Self diagnosis has solved the problem - following the other instructions & tips given to JeanneFromma - I removed an apostrophe from the name of my computer, and Time Machine is back in action, working perfectly. Didn't need to re-start. Hooray.