Itunes was unable to load data class information from sync services.Reconnect and try again later.

when I open itunes I get message " itunes was unable to load data class information from sync services. reconnect or try again later "
I am unable to sync my ipad 2 or iphone 4 through itunes. I have tried all suggested options, removing itunes and related components from control panel + verified completely uninstalled from C program files + then reinstalling latest version of itunes (version 11.3.1.2). Also tried running itunes as administrator. Also tried reset sync history in itunes Also tried system restore on windows 7 from earlier period.Still get the same above message.
I run 64bit windows 7. Have recently renewed my Norton Intenet Security. Everything was OK up till then. Could this have anything to do with it.

A quick cursory browse seems to point that the problem is on Apples end since the last update of iTunes, theres loads of forum posts about it but Apple themselves arent responding as yet other then the usual "unplug, delete sync data, reconnect or completely uninstall iTunes" spiel which doesnt work so hopefully they will fix it sooner or later

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I get this message when i try to sync and download my iphone: itunes was unable to load data class information from sync services, reconnect or try again later. what does that mean and who do you fix it

I get this message when i try to sync and download my iphone, ITUNES was unable to load data class information from sync services, reconnect or try again later. this has happened twice. i have not downloaded by phone in several months. the first time i got this message i did not understand i and left my phone plug in for 12 hrs and it never did anything. today. when i got the message i just unplugged it.
help

http://support.apple.com/kb/TS2690?viewlocale=en_US&locale=en_US

I have an ipod touch 5th gen and when connected to itunes i get a message saying itunes was unable to load data class information from sync services. reconnect or try again later. anyone got any ideas? i've tried most things on most forums but still no jo

i have an ipod touch 5th gen and when connected to itunes i get a message saying itunes was unable to load data class information from sync services. reconnect or try again later. anyone got any ideas? i've tried most things on most forums but still no joy

Try here:
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert
If not successful see the previous discussion on the right side of this page with the green checkmark.

I keep getting the following message every time i plug in my Iphone to Itunes on my windows vista computer Itunes was unable to load data class information from sync services. reconnect or try again later. any suggestions pls Mario

I keep getting the following message every time i plug in my Iphone3gs to Itunes on my windows vista computer
Itunes was unable to load data class information from sync services. reconnect or try again later.
any suggestions pls
Mario

The article says that I should upgrade to the latest iTunes. I am on the latest iTunes version.
If you could read just a tiny little bit further, under the "Additional Information" section immediately after that, it says:
If you are still experiencing this issue when syncing, or have not installed Xcode 4 and get this alert:
Follow the troubleshooting steps in Mac OS X v10.5, v10.6: Resetting the SyncServices folder.
If the issue is still unresolved, follow steps in Sync Services: Advanced troubleshooting for contact and calendar syncing.
Have you tried those measures?

Cant put pdfs or music on.the message i get when itunes comes up is "iTunes was unable to load data class information from sync services.reconnect or try again later." and its just my itouch i tried another one and was able to put songs and pdfs on it...

I cant put pdfs or music on my itouch,it wont sync.the message i get when itunes comes up is "iTunes was unable to load data class information from sync services.reconnect or try again later." and its just my itouch i tried another one and was able to put songs and pdfs on it...please help!

Try here:
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert
If not successful see the previous discussion on the right side of this page with the green checkmark.

TS2690 iTunes was unable to load data class information from Sync Services reconect or try again later

My Ipad (iPad Air - iOS 7.1.2 and Ipad 2 - iOS 7.1.2) can't sync with itunes. It said: "iTunes was unable to load data class information from Sync Services reconect or try again later".
I already reset sync history but it didn't work.
They are not jailbraked.
iTunes's version is 11.3.1.2
Pls show me how to fix this error.
Thanks.

John L316 wrote:
Does anyone know what is causing this
see if this support article helps:
iTunes 10.2: "iTunes was unable to load data class information from Sync Services" alert after installing Xcode 4.

New Ipad and cannot sync contacts; error message unable to load data class info from sync services; reconnect or try again later

new Ipad and cannot sync contacts; error message on Itunes - unable to load data class info from sync servies; reconnect or try again later

For Windows - look at this.
http://support.apple.com/kb/TS1567?viewlocale=en_US
For Mac - maybe this applies
http://support.apple.com/kb/TS3744
I just picked these out by going to the box to the right called - More like This.

HT1369 iTunes was unable to load data class information from Sync Services

I get the error, "iTunes was unable to load data class information from Sync Services" whenever I try to sync my iPhone 4. I was trying to get it backed up to move the data to my new iPhone 5.

In the course of your troubleshooting to date, have you worked through the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

TS2529 iTunes was unable to load data class information from Sync Services. Reconnect or try again later is the error message I am getting when i connect my iphone 4 to my windows based computer. Any help out there?

iTunes was unable to load data class information from Sync Services. Reconnect or try again later. This is the message when I try to connect my iphone 4 to my computer. If anyone could help me with this, I would appreciate it.

iOS: Device not recognized in iTunes for Windows
http://support.apple.com/kb/TS1538
iOS: Device not recognized in iTunes for Mac OS X
http://support.apple.com/kb/ts1591

ITunes was unable to load data class information from Sync Services. Reconnect or try again later.

Ever since I upgraded to iTunes 10.4 I've been getting this dreaded message on many occasions when I try to sync my iPhone 4 or iPad 2 with my Win 7 64 bit machine. "iTunes was unable to load data class information from Sync Services. Reconnect or try again later." What happens is that local content (music, videos etc) will sync properly to my iPhone, but other content (such as Outlook information, MobileMe stuff, etc) will not.
I have uninstalled and completely purged all Apple data from my PC (including hidden files and folders under Common Files and in the Registry) and reinstalled iTunes. Yet after one or two syncs, the same problem resurfaces. The other weird part is that the Sync Services crap-out message will happen after I do a successful sync, leave the iPhone connected to the PC, and don't even touch the computer for several hours.
I've actually developed a very tedious work around that seems to restore syncing if for a short time.
- Undock/unconnect all Apple devices from the PC.
- Close iTunes, MobileMe control panel, and Safari (if you have it).
- Start Task Manager (Ctrl + Alt + Del) and shut down iTunesHelper.exe and SyncServer.exe
- Open up a Windows Explorer window (like My Computer) and under Tools, Folder Options, View, toggle on Show Hidden Files and toggle off Hide Protected Operating System FIles
- In WIndows Explorer, navigate to "C:\Users\<your name>\App Data\Roaming\Apple Computer". Rename the folder Sync Services to something else, like Sync Services_Old.
- In WIndows Explorere, navigate to "C:\Program Files (x86)\Common Files\Apple\Mobile Device Support" and double-click on AppleSyncNotifier.exe.
- Go back to your Folder Options and turn off SHow Hidden Files and toggle on Hide Protected Operationg System Files
Now you can start up iTunes again and connect your device. It should sync properly again (at least, until it doesn't once more).
Does anyone at Apple have any idea about this error or a solution?

I actually spent a fair amount of time on the phone with a senior Apple tech last week. He directed me to this topic:
http://support.apple.com/kb/HT1923?viewlocale=en_US
It's important that you go through the steps EXACTLY as described here and in the proper order. Also make sure MobileMe control panel is uninstalled (if you have it).
Interestingly, when I went through this procedure and then reinstalled iTunes 10.4 64-bit (didn't do MobileMe or Safari at this stage, but QT is automatically installed) everything worked perfectly. The aforementioned error messages disappeared and all is working flawlessly, as it should.
I hope my expereince will help! Give it a try.

ITunes was unable to load data class information from sync services.

I get the error message "iTunes was unable to load data class information from sync services. Reconnect or try again later" after reinstalling iTunes. I cancel the message and iTunes proceeds to sync with my iPhone 4. The phone and iTunes software are the latest releases. My PC is running Windows 8.1, which had to be reinstalled after the system crashed, requiring a total reinstall of all software.

Doublechecking. You've tried the following document?
iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert

HT1386 my ipad won't sink; I continually get message: itunes was unable to load data class information from Sync Services. Reconnect or try again later. I have done both several times and still receive same messaage.

My iPad won't sink with my computer. I continually receive this message: "iTunes was unable to load data class information from Sync Services. Reconnect or try again later." I have tried this over a number of days and receive the same message. Any suggestions??

IOS: Syncing with iTunes
http://support.apple.com/kb/HT1386
Apple - Support - iPad - Syncing
http://www.apple.com/support/ipad/syncing/
ITunes: Syncing media content to your iOS devices
http://support.apple.com/kb/ht1351
There are some similar posts on the right side of this page (More Like This). Look at those posts.
 Cheers, Tom

I am receiving an error message when starting up iTunes: iTunes was unable to load data class information from sync services. Reconnect or try again later. (what does this mean?)

I recently updated my iTunes to the most recent version and I am receiving an error message when starting up iTunes: iTunes was unable to load data class information from sync services. Reconnect or try again later. (Does anyone know what this means and if it is going to cause me issues?)

http://support.apple.com/kb/TS2690?viewlocale=en_US&locale=en_US

I am having problems syncing my ipod touch. I keep getting this message. iTunes was unable to load data class information from sync services. Reconnect or try again later

When I try to sync my ipod touch 5. I get the following message. iTunes was unable to load data class information from sync services. Reconnect or try again later.
I get the same message when I try to sync my iPhone 4s
Should I uninstall/reinstall itunes and if so should it be all the programmes associated with Apple or just iTunes

See this thread for more people having the same issue.
http://discussions.apple.com/thread/6500271

ITunes was unable to load data class information from sync services on windows pc

I have been able to use iTunes on my windows 7 pc for several years with no problem to sync calendar and contact with Outlook 2013; Suddenly I'm getting this error message. iTunes recognises an iphone but I can't sync it. I've tried uninstalling iTunes, Apple Software Update, Apple Mobile Device Support, Bonjour and Apple Application Support, rebooted the PC and reinstalled iTunes. Nothing works. Can anyone help please?

Error message missed off previous post - "iTunes was unable to load data class information from sync services"

Itunes was unable to load data class information from sync services.Reconnect and try again later.

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