Error 18 Fixed. Now not backing up fully

"Unable to find back up volume", error 18. Back up disk displayed and working normally otherwise. Changed the firewire cable - FIXED!
Now TM only backs up to the applications folder, (about 50K). TM taking up a lot of my time.
29/12/2007 Saturday, 29 December 7:45: AM /System/Library/CoreServices/backupd[5453] Backup requested by automatic scheduler
29/12/2007 Saturday, 29 December 7:45: AM /System/Library/CoreServices/backupd[5453] Starting standard backup
29/12/2007 Saturday, 29 December 7:45: AM /System/Library/CoreServices/backupd[5453] Backing up to: /Volumes/Back Up 250G - Damman/Backups.backupdb
29/12/2007 Saturday, 29 December 7:55: AM /System/Library/CoreServices/backupd[5453] No pre-backup thinning needed: 204.12 GB requested (including padding), 232.66 GB available
29/12/2007 Saturday, 29 December 7:55: AM /System/Library/CoreServices/backupd[5453] Error: (-36) copying /Applications/A.Pack.app/Contents/MacOS/A.Pack to /Volumes/Back Up 250G - Damman/Backups.backupdb/McGilla Gorilla's G5/2007-12-29-074526.inProgress/172FA546-7AC7-4DBE-8BA0-E15943A4E400/Mark's Powermac G5 Hard Drive/Applications/A.Pack.app/Contents/MacOS
29/12/2007 Saturday, 29 December 7:55: AM /System/Library/CoreServices/backupd[5453] Copied 0 files (1.8 MB) from volume Mark's Powermac G5 Hard Drive.
29/12/2007 Saturday, 29 December 8:05: AM /System/Library/CoreServices/backupd[5453] No pre-backup thinning needed: 215.46 GB requested (including padding), 232.66 GB available
29/12/2007 Saturday, 29 December 8:05: AM /System/Library/CoreServices/backupd[5453] Error: (-36) copying /Applications/A.Pack.app/Contents/Resources/A.Pack.rsrc to /Volumes/Back Up 250G - Damman/Backups.backupdb/McGilla Gorilla's G5/2007-12-29-074526.inProgress/5C39C579-2785-4415-AC8A-FC2D696A0994/Mark's Powermac G5 Hard Drive/Applications/A.Pack.app/Contents/Resources
29/12/2007 Saturday, 29 December 8:05: AM /System/Library/CoreServices/backupd[5453] Copied 0 files (2.3 MB) from volume Mark's Powermac G5 Hard Drive.
29/12/2007 Saturday, 29 December 8:05: AM /System/Library/CoreServices/backupd[5453] Starting post-backup thinning
29/12/2007 Saturday, 29 December 8:05: AM /System/Library/CoreServices/backupd[5453] No post-back up thinning needed: no expired backups exist
29/12/2007 Saturday, 29 December 8:05: AM /System/Library/CoreServices/backupd[5453] Backup completed successfully.

You might try resetting the PRAM and starting up from the Leopard install DVD which forces Time Machine to reindex. However, I wonder if Time Machine's backups got corrupted in which case that won't work.
Resetting your Mac's PRAM and NVRAM
http://docs.info.apple.com/article.html?artnum=2238
If resetting the PRAM and reindexing doesn't work I suspect that you will have to start your Time Machine backups over from scratch. If that is the case you should copy any files that are on your Time Machine drive that you have erased from your internal drive.
Reformat the Time Machine drive in Disk Utility. Click on the Security Options button and choose to zero out the data. That should map out any bad sectors on the disk but it takes a long, long time. Then click on Erase.
Hopefully, someone else might be able to come up with another solution that won't involve you having to start your backups over from scratch.

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How do I fix the following error? itunes counld not back up the iphone because the back up could not be saved on the computer?

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I updated to iOS 5.0.1 days ago and didn't receive that notification until just now...
This time I synced new photos I took yesterday, and it gave me the:
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I've decided to rent a movie yesterday. Once it gets deleted, I'm curious to see if it jumps to 55 items.

I am getting error message "iTunes could not back up the iPhone because the backup was corrupt or not compatible with the iPhone". I have deleted the backup and restarted my computer, but continue to get this error message. What do I need to do now?

I have recently updated my phone and am attempting to sync it. I got the error message "iTunes could not back up the iPhone because the backup was corrupt or not compatible with the iPhone". I deleted the backup, restarted my computer, and even restored the iPhone, but continue to get the same error message. What do I need to do now?

iTunes places the iPhone backup in the following location. Navigate there & delete everything in the backup folder, but not the folder itself. You will have to turn on "Show All Hidden Files & Folders" to see it:
Mac:~/Library/Application Support/MobileSync/Backup/
Windows XP:\Documents and Settings\(username)\Application Data\Apple Computer\MobileSync\Backup\
Windows Vista and Windows 7:\Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\

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I keep receiving the error message: itunes could not back up the iphone "....." because the backup session failed. Can anyone advise me on what I can try doing to fix this problem?

This Apple article talks about backup issues -> iOS: Troubleshooting backup issues in iTunes
Are you able to backup if you move the previous backup from the location below to the desktop?
Windows XP: \Documents and Settings\(username)\Application Data\Apple Computer\MobileSync\Backup\
Windows Vista and Windows 7: \Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\

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I want to backup my phone before upgrading to ios5 but I get an error message: itunes could not back up the iphone because a session could not be started with the iphone. I want to go to ios5, but I do not want to lose everything. I've gone to my device under preferences and I have no backup currently.
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Hi Judy,
Im using windows 7 and im not a computer wizard, i've tried the method by using the instruction for Win7 but it does not work, same problem still exist.
Could uninstall itunes and reinstall it back on my pc fix my problem, please advise...... Many Thanks!
VBR,
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Error Message: iTunes could not back up the iPhone because an error occurred

Error Message: iTunes could not back up the iPhone because an error occurred.
The thing is - I have no idea what error have I encountered!
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I have tried -
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3. Remove
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Unfortunately, "because and error occured" doesn't give you much to go on. Some general things I would try if you haven't already:
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Try a different usb to dock connector cable; ensure that your case isn't interfering with a good connection to the dock connector at the bottom of your phone; clean the dock connector at the bottom of your phone (e.g., with a dry toothbrush); troubleshoot your usb connection (http://support.apple.com/kb/TS1286)
I know this looks like a laundry list, but unfortunately it's hard to isolate the problem without a clear error message. If the problem persists, you might try posting in the iMac or iTunes forums for other ideas.

HT1414 I restored my iPhone and when sync is in progress I receivee the error message "iTunes could not back up the iPhone because a session could not be started with the iPhone." Any suggestions?

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Error message: iTunes could not back up the iPod "iPod name" because an error occurred

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Try moving the existing backup file to a safe location and then try again. The backup file is located:
Mac: ~/Library/Application Support/MobileSync/Backup/
Windows XP: \Documents and Settings\(username)\Application Data\Apple Computer\MobileSync\Backup\
Windows Vista and Windows 7: \Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\

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See:
iOS: Troubleshooting backup issues in iTunes
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I am using iphone 3GS, after syncing for few times and got the errors. I deleted the backup from Edit-> Preferences-> Devices. Then I synced again, there was an error message: itunes could not back up the iphone because the backup was corrupt or not compatible with the iphone. What can I do? I have no backup anymore on ituens.

babesharon
I closed iTunes & manually deleted the file which was still stored locally even though it didn't display in Preferences. I have vista so I went to
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I reopened iTunes & Synced with out a problem. I also got the update to install.
Good luck.

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The solution will be found here, select your computer type and software.
http://support.apple.com/kb/TS2529

I have an iPhone with iOS 7.1.1 and am trying to update to 7.1.2, but get an error message "iTunes could not back up the iPhone becaus the backup was corrupt or not compatible with the iPhone"

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Assuming you are using the current version of iTunes (11,2,2), open iTunes, click "Preferences" under the leftmost entry on iTunes' menu, then choose "Devices".
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Previously posted troubleshooting doesn't work for my error message "iTunes could not back up the iPhone because an error occurred". What other options do I have?

Previously posted troubleshooting doesn't work for my error message "iTunes could not back up the iPhone because an error occured". What other options do I have to backup my iPhone data properly?

Hi there kchagape,
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iOS: Troubleshooting backup issues in iTunes
http://support.apple.com/kb/ts2529
-Griff W.

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http://support.apple.com/kb/TS3221

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Hi there BuffaloSailor!
I have an article here with some troubleshooting suggestions for this issue:
iOS: Troubleshooting backup issues in iTunes
http://support.apple.com/kb/ts2529
Take care, and thanks for visiting the Apple Support Communities.
-Braden

Error 18 Fixed. Now not backing up fully

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