Another Unknown error (-50)

I was downloading the first season of Lost. All of them downloaded except for one. The one that didn't download was problamatic because I lost connection while downloading. It was supposed to pick up and download anyway. It tells me in the the advanced section check for purchases that it is there for downloading. When it starts to connect to download this it gives me the error message. I put my firewall down for a little bit thinking that was what i was supposed to do for the moment but it still didn't work. What else can I do?

i have a trojan in my i pod so it s blocked by my
pc.
i tunes detect it but not windows and if i want to
put music on it i cant. a message come telling me
that writing and reading are impossible and then
another one saying that there is an unknown error
(-50)
what shall i do to repare it ???
Check out this thread, there's a solution in it:
http://discussions.apple.com/thread.jspa?threadID=831328&tstart=0

Similar Messages

Unknown error -50 after computer wakes from sleep.

I've been having a problem for a couple of weeks now. After waking the computer from an extended sleep. I start having strange errors. For example.
*The desktop will not let me move items to the trash. It still makes the trash sound but the folder stays on the desktop. When I try to create a new folder on the desktop, I get "Unknown error occurred (-50)".
*iTunes is unable to save my library, and I get another "unknown error -50". My Mail program will not get mail off the server. I know there is mail because it's on my iPhone. I get no error message with mail. Address book has an error message that my address book file is corrupt, and cannot save. Safari will not shut down even with Force quit.
I have tried to repair my preferences and the disk utility finishes instantly after i start the repair, saying that it's done.
I try to shut down my computer and it hangs because of Safari. I do a hard boot and the computer gets to the apple screen and hangs. I do another hard boot, and the computer restarts, and everything works again.
Is something happening when the computer sleeps that is messing everything up?
I thought I might have a hardware problem so I ran the Hardware check, and it says everything is fine. Anyone else having this problem? I have already tried a clean install, and 2 archive and installs, the first with my preferences and the second without. But I still have the problem... what do I do?
Model Name: iMac
Model Identifier: iMac4,1
Processor Name: Intel Core Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 2 MB
Memory: 2 GB
Bus Speed: 667 MHz
Boot ROM Version: IM41.0055.B08
SMC Version: 1.1f5
Brian

Well, I've just gotten off the phone with Apple. After being transferred to a senior technical adviser, his assumption is that it is probably the logic board. We did run the apple hardware test, which it passed. But ironically, I had no mouse function the whole time because it was frozen up in the corner (thank goodness for the enter key).
After lots of silence on the line, he determined that since the computer wasn't even 30 days out of warranty, that he would classify it as Dead on Arrival (since it has had problems straight out of the box, has had repairs and is still having issues), and arranged for sales to contact me (on Monday of course) to replace it. I'm sure it will be another refurb, and I pray that this one treats me well. I'm really tired of loading & reloading all of my data. I have an external drive due to arrive Tuesday that I can create a back-up on of this machine, and transfer it all via Time Machine when the new one is in my hands. So let's hope this is last you hear from me! Thanks!

Been visiting another country. when i got home i get an unknown error has occurred on both my iphone and ipad2 when trying to install or update anything from app store

been visiting another country. when i got home i get an unknown error has occurred on both my iphone and ipad2 when trying to install or update anything from app store

I started getting that message on my iPad tonight when I reset it completely. I haven't been t another country. So not sure if that has anything to do with it. I haven't been able to resolve yet.

HT201263 my iphone 4 went into recovery mode & will not restore. Unknown error 21 comes up on iTunes. Please can someone offer any ideas for a solution?

I have an iphone 4 nearly 2 yrs old. It has worked perfectly for that time. On Friday last (whilst away on holiday) I took the phone out of my pocket & it was lifeless. I tried switching it on, no joy, I tried the power/home button reset no joy. I plugged it into a mains charger & it came on but had a banner across the screen saying "verification required". I removed the charger & decided I would try again when I got home so I could connect to my PC & iTunes.
At home I went through the whole above process again but when I plugged it into the mains again it just had the Apple logo going on/off repeatedly. I plugged the phone into my PC & the apple logo appeared followed by the "connect to iTunes". In iTunes I get the banner "iTunes has detected an iPhone in recovery mode. You must restore this iPhone before it can be used with iTunes". So I click on "OK" the "Restore" then a banner asking if I'm sure I want to restopre the iPhone appears, press "Restore & Update". iTunes starts to remove the software, veryfies it with Apple & then another flag "The iPhone could not be restored. An unknown error occurred (21) which appears to be a security issue.
I thought the above problem was something to do with O2 because I picked up my new iPhone 4S last Tuesday but was unable to set it up until I got back from my holiday, O2 say it isn't anything they've done.
My question is has it happened to anyone & can anybody offer a solution, is it a hardware or software issue?

Please see the two articles below:
http://support.apple.com/kb/TS3694
http://support.apple.com/kb/TS3125

Unknown Error during Recovery - iPad no longer Recognized by iTunes

I have a 3rd Generation iPad which I was attempting to perform a factory reset. I received an "Unknown Error" during the process and from that point on I have been unable to get iTunes to recognize my iPad in recovery mode (or otherwise).
I have tried every thread on the subject, but I found one interesting thing. If I connect the iPad with the same cable, etc. to another computer it immediately recognizes it in recovery mode and offers to restore the iPad.
It seems like my computer is not recognizing the iPad because it was in the process of restoring the device when the error occurred. Does anyone know if there is a way to reset or fix this issue. I would prefer not to update iTunes and download both the new iTunes and iPad software again and use another computer if it is not necessary.
Any help would be appreciated.
Thanks

Hey KSHItunes,
That was a good test to try your iPad on another computer. It does seem to isolate the issue to something with your computer setup.
Although you would prefer not to update iTunes, there may be steps in this article which can help.
iPhone, iPad, or iPod not recognized in iTunes for Windows - Apple Support
Please check it out.
Regards,
Nubz

Tried to update my iPad OS from iTunes. Frozen and got an "unknown error msg". I tried to restore the iPad to factory settings..got the same

I bought today a new iPad from Rideau Store. The setup guys didn't update to latest software version. I tried to do myself trough iTunes, which notify me that an upgrade is available. After a while the upgrading process froze with a msg "unknown error ..". I clicked on the More info button and I got a page saying "due to a scheduled upgrade of Apple's support system some feature are not available.
The bottom line is that now the iTunes does detect the iPad being in recovering mode and asks to restore it to fabrics defaults. I tried to do this and again I got aqn "unknown error"
Finally I run the iTunes diagnostics to check the connectivity between my iPad and my HP laptop (iTunes). For unknown reson the iTunes does not detect my iPad. See below the diagnostics log:
Itunes Diagnostics
MicrosoftWindows XP Professional Service Pack 3 (Build 2600)
Hewlett-PackardPavilion dv5000 (EP416UA#ABA)
iTunes10.2.2.12
QuickTime 7.6.9
FairPlay1.11.17
AppleApplication Support 1.5.1
iPod UpdaterLibrary 10.0d2
CD Driver2.2.0.1
CD Driver DLL2.1.1.1
Apple MobileDevice 3.4.0.25
Apple MobileDevice Driver 1.55.0.0
Bonjour 2.0.5.0(214.3)
Gracenote SDK1.8.2.457
GracenoteMusicID 1.8.2.89
GracenoteSubmit 1.8.2.123
Gracenote DSP1.8.2.34
iTunes SerialNumber 0012AD0812DA2D38
Current user isan administrator.
The currentlocal date and time is 2011-04-20 20:32:27.
iTunes is notrunning in safe mode.
WebKitaccelerated compositing is enabled.
HDCP is notsupported.
Core Media issupported.
Video DisplayInformation
ATI MOBILITYRADEON Xpress 200 Series
**** ExternalPlug-ins Information ****
No externalplug-ins installed.
Genius ID:cb0eaa5cad8a753f64335065bc061263
**** DeviceConnectivity Tests ****
iPodService10.2.2.12 is currently running.
iTunesHelper10.2.2.12 is currently running.
Apple MobileDevice service 3.3.0.0 is currently running.
UniversalSerial Bus Controllers:
StandardEnhanced PCI to USB Host Controller. Device is working properly.
StandardOpenHCD USB Host Controller. Device isworking properly.
StandardOpenHCD USB Host Controller. Device isworking properly.
No FireWire(IEEE 1394) Host Controller found.
Most RecentDevices Not Currently Connected:
iPad runningfirmware version 4.3.1
Serial Number:        DLXFK2A8DKPH
**** DeviceSync Tests ****
No iPod, iPhone, or iPad found.

Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try another cable
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar
Also, do you remember what the error message said?

"Unknown Error" all the time, every time on render of project, any codec

Trying to render a feature length documentary for a film festival (ie.. I don't have time for this). The project timeline runs 1 hour and 20 minutes. If I try and export or queue the timeline in media encoder to h.264, QuickTime or Select "Match Sequence Settings" as my output format, the media encoder fails to render with the very informative "UNKNOW ERROR" every time at random point in the render procedure. When rendering it as an mpeg once, I am able to see one place where it crashed. It is a place in the timeline where the are no transition, not cuts, no overlays, absolutely nothing out of the ordinary. Yet, it crashed there this time. Next time, it will crash elsewhere.
I am trying to render the timeline on segment at a time. So far, each smaller segment of 20 minute blocks seems to be rending just fine and goes past the points where other renders failed. Looks like Media Encoder can't handle large projects.
Here's all the requested information for a complete diagnosis of the problem.
Error given to me by Media Encoder : "Unknown Error" --that's it. The time rendered varies between 43 minutes and 3 hours.
- Encoding Time: 00:54:04
05/03/2015 05:59:03 PM : Encoding Failed
Export Error
Error compiling movie.
Unknown error.
Adobe Premiere Pro CC 8.1 Caravan
2014.2 Release
8.2.0 (65) Build
OS X 10.10.3 (14D136)
iMac (27-inch, Mid 2011)
3.4 GHz Intel Core i7
24 GB 1333 MHz DDR3
AMD Radeon HD 6970M 2048 MB
I'm right handed, my favorite color is blue, the computer is on the Eastern TimeZone
I need this timeline rendered and I'm not interested becoming a forensic-level technical authority on Premiere to get it. This problem has come and gone now for months and is intolerable. I pay for software and I expect it to work, and at least give me something more useful than "UNKNOW ERROR." There is no such thing. As a former developer, I can say with authority that simply dumping to a message that says this is lazy and sloppy programming. Buffer underruns, stack overflows..whatever. Everything is caused by something. I can't begin to diagnose this problem unless Adobe provides software error handing that gives me some idea of what happens. Where did it happen in the timeline? What routine/subroutine gave the error? Was it a codec error? Come on....these things are not unknowable.
Adobe, PLEASE stop coming out with new features when you can't make your existing pay by the month software reliable! Maybe FCPX is worth another look.

UPDATE:
tried rending the entire project as Quicktime ProRes 422 (since that is what clips were recorded in originally anyway) and Media Encoder gto 89% complete....and the entire application CRASHED. WHO-HOO! Way to go, Adobe!!!!!
Here's part of the crash report if it means anything. Maybe I'll try it again and see if anything changes! Can't get any worse.
Process:               Adobe Media Encoder CC 2014 [864]
Path:                  /Applications/Adobe Media Encoder CC 2014/Adobe Media Encoder CC 2014.app/Contents/MacOS/Adobe Media Encoder CC 2014
Identifier:            com.adobe.dynamiclinkmanager.application
Version:               8.2.0.54 (8.2.0)
Code Type:             X86-64 (Native)
Parent Process:        dynamiclinkmanager [826]
Responsible:           dynamiclinkmanager [826]
User ID:               502
Date/Time:             2015-05-03 20:05:05.829 -0400
OS Version:            Mac OS X 10.10.3 (14D136)
Report Version:        11
Anonymous UUID:        5CCC287C-7B70-E4F9-D0E8-4180FB0681CC
Sleep/Wake UUID:       0ED73954-6C5A-4CCE-B807-974B71171E95
Time Awake Since Boot: 33000 seconds
Crashed Thread:        0 Dispatch queue: com.apple.main-thread
Exception Type:        EXC_CRASH (SIGBUS)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib         0x00007fff94c8d4de mach_msg_trap + 10
1   libsystem_kernel.dylib         0x00007fff94c8c64f mach_msg + 55
2   com.apple.CoreFoundation       0x00007fff94955eb4 __CFRunLoopServiceMachPort + 212
3   com.apple.CoreFoundation       0x00007fff9495537b __CFRunLoopRun + 1371
4   com.apple.CoreFoundation       0x00007fff94954bd8 CFRunLoopRunSpecific + 296
5   com.apple.HIToolbox           0x00007fff8ab7256f RunCurrentEventLoopInMode + 235
6   com.apple.HIToolbox           0x00007fff8ab722ea ReceiveNextEventCommon + 431
7   com.apple.HIToolbox           0x00007fff8ab7212b _BlockUntilNextEventMatchingListInModeWithFilter + 71
8   com.apple.AppKit               0x00007fff8c8fe9bb _DPSNextEvent + 978
9   com.apple.AppKit               0x00007fff8c8fdf68 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 346
10 com.apple.AppKit               0x00007fff8c8f3bf3 -[NSApplication run] + 594
11 com.adobe.exo.framework       0x00000001057f3a88 exo::app::OS_AppBase::RunEventLoop() + 56
12 com.adobe.ame.application     0x00000001000195c1 AME::RunTheApp(exo::app::AppInitArgs&, std::vector<std::basic_string<unsigned short, std::char_traits<unsigned short>, dvacore::utility::SmallBlockAllocator::STLAllocator<unsigned short> >, std::allocator<std::basic_string<unsigned short, std::char_traits<unsigned short>, dvacore::utility::SmallBlockAllocator::STLAllocator<unsigned short> > > >&) + 11809
13 com.adobe.ame.application     0x0000000100049ba8 main + 440
14 com.adobe.ame.application     0x0000000100003e34 start + 52

Webex Connect "An unknown error ocurred connecting the server" Error Message

Hi,
We have the latest Cisco Webex Connect Clients (7.1.1 Build 16597) in use in our company. With no obvious reason one of our employees now can't connect to Webex Connect getting the Error Message "An unknown error ocurred while connecting to the server." We tried to close and re open the client and to re-enter the password, both with no succes. Using another Jabber/XMPP capable IM Client works but not using Cisco Webex Connect.
Can anyone help?
Cheers,
Patrick

You may face this issue if your IE is working in offline mode.
To resolve:
Try going to google.com on internet explorer.
Click on connect when prompted.
Once google.com opens fine then try logging in to the WebEx Connect again.
It should work now.

User unable to delete calendar event "unknown error"

User is running Outlook 2013 home business, and she has a calendar entry that is linked to another mailbox .
When I browse this mailbox from OWA or Outlook client i cannot see this calendar entry.
When the user tried to delete the entry, they receive warning "unknown error" .
It appears the calendar entry is somehow linked to her Outlook profile.
How can i reset this entry without recreating her profile?
Regards

Hi
It is a recurring appointment. When you double click on the appointment it states "This is on appointment in a series. What do you want to open?" Click The entire series , and it opens the appointment in READ ONLY mode. When you click Delete
, it throws unknown error.
i have tried the following commands;
Outlook /cleansharing
outlook /cleanreminders
outlook
/cleandmrecords
outlook
/cleanfreebusy
outlook
/cleanprofile
none of which have removed this entry.
I have even tried creating another profile for the user, and this reoccurring appointment is still visible.
The appointment isn't visible on the mailbox where it was created nor is it visible when viewing both mailboxes on OWA.
here is a screen shot showing the issue.

The iTunes application could not be opened. An unknown error occurred (-50)

Today, I downloaded the latest version of Itunes.
When it finished installing it came up with the following error:
"iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 127)". I have uninstalled iTunes, and all related Apple software and re-installed iTunes several times and still I get the same error.
I contacted Apple support and was sent two emails. One detailing what needed to be uninstalled and then a web site to go to where I could download and install Microsoft's latest .NET Framework, which apparently was the root cause of the problem.
I did as instructed:Use the Control Panel to uninstall iTunes and related software components in the following order:
1.iTunes
2.QuickTime
3.Apple Software Update
4.Apple Mobile Device Support
5.Bonjour
6.Apple Application Support (iTunes 9 or later).
Restarted the PC and then downloaded the latest version of Microsoft's .NET Framework - version 4.
Restarted the PC again and received a strange message from some Apple application I have never heard of stating "CoreFoundation.dll file is missing".
I GOOGLEd the message and found out I also needed to unistall another Apple application called MobileMe. So, I did this and restarted the PC again!
I then downloaded the latest version of iTunes, again.
Now I'm getting "The iTunes application could not be opened. An unknown error occurred (-50).
From checking through GOOGLE, I believe it's something to do with user accounts and iTunes not being able to find the music folder???? But the answers I found all relate to Windows 64 pit PC's.
I am running Windows 7, 32 bit on a Sony Vaio laptop.
I cannot get support from Apple as I don't own a MAC. But I do own an iPhone but it's out of warranty.
HELP !!!!
Can anybody please help me?
Thx

If you go to the web page "http://support.apple.com/kb/ht1923" and follow the "Verify iTunes and related components are completely uninstalled" it does the trick. There are few other folders and files that alos need to be deleted!
iTunes is now working.

How do i fix my iphone 5 stuck in recovery mode and wont let me restore it just says unknown error 1603 has occured

how do i fix my iphone 5 stuck in recovery mode and wont let me restore it just says unknown error 1603 has occured

http://support.apple.com/kb/TS3694#error1603
Follow the steps listed above for Error 1604. Also, discard the .ipsw file, open iTunes and attempt to download the update again. See the steps under Advanced Steps > Rename, move, or delete the iOS software file (.ipsw) below for file locations. If you do not want to remove the IPSW in the original user, try restoring in a new administrator user. If the issue remains, Eliminate third-party security software conflicts.
http://support.apple.com/kb/TS3694#error1604
This error is often related to USB timing. Try changing USB ports, using a different dock connector to USB cable, and other available USB troubleshooting steps (troubleshooting USB connections. If you are using a dock, bypass it and connect directly to the white Apple USB dock connector cable. If the issue persists on a known-good computer, the device may need service.
If the issue is not resolved by USB isolation troubleshooting, and another computer is not available, try these steps to resolve the issue:
Connect the device to iTunes, confirm that the device is in Recovery Mode. If it's not in Recovery Mode, put it into Recovery Mode.
Restore and wait for the error.
When prompted, click OK.
Close and reopen iTunes while the device remains connected.
The device should now be recognized in Recovery Mode again.
Try to restore again.
If the steps above do not resolve the issue, try restoring using a known-good USB cable, computer, and network connection.

Corrupted/Locked out apple ID "An Unknown Error has occurred" logging into support?

I was forced to use a different apple id to log into this support community because all attempts from different devices and browsers using another ID have ended up at the password prompt with "An unknown error has occurred" at the community login screen. The ID can still be "manged" and appears to be able to make purchases from the iTunes Store over the internet. A phone incident case number 388249960 was opened and I spent over an hour on the phone with this problem. The ID in question was set up more than two years ago to help with my wife's iPad 1 which we paid 800 plus for,,, all the storage and bells and whistles. Recently she started using the iTunes store to purchase and download television series and we got in trouble because her directories were filling the c:drive on a Vista Business computer she normally uses. Before starting to deal with the problem of storage, I tried to make sure everything was up to date and downloaded/installed the latest iTunes 11.0,1,, to her machine. I already had it on another machine running Windows 7 and two older Windows XP machines. All of them were "tested" for home networking to our Apple TV so that I could go to the TV and find a computer which could be used as a source for streaming music, videos, etc., etc. all based on her ID. As of this writing, I believe all of that functionality still exists, but, when I navigate to support and try to log in using her ID and password, I get re-prompted for the password and then "Locked Out" when "An Unknown Error Has Occurred" pops up above the login via the web site.
I am writing this after much agony and travial via an obsolete instance of Windows Explorer running on Windows XP Home Premium on an old portable using a newly created Apple ID which does not appear to have the same problems logging into the support community. Can anyone out there help me?
I have gone to war with Comcast's "free" security enhancement software "Constant Guard" believing that it might be the source. This machine had it installed at one time and has had it completely removed, but... it still experiences the error when my wife's ID is used.
The issue may be related to the recently added requirement for secuity questions and recovery email addresses which I tried to address for her ID and inadvertently ran into conflict/problem with using certain other email addresses with her ID. Perhaps something is corrupted in the database for her ID, or related to problems with support for esoteric things like Microsoft's .NET enhancements which I have long been using on my computers, or possibly Constant Guard "started" the problem because it was probably running when account security data was being updated via the Apple web site? I tried to get information about what I thought was the "recovery email address" associated with her account and was told by Apple Web sites that it was "in use" as an apple ID and could not be used as her recovery address. When I called trying to confirm that this ID was "mine" I was able to provide one of two security clearance pieces of data, but not enough information to get the support person to straighten things out for me. I ended up creating "yet another" ID just to get clear of the mess.
I made a suggestion to one of the folks I spoke with that an improvement to the functionality of apple ID's would be to support "consolidation" of accounts so that if several different Apple devices had been registered with different ID's and they all belonged to the same user(s) that a "common ID" could be created.
I'm reluctant to post apple ID's in a public support forum, and would prefer to deal with this by private email. or phone.
Message was edited by: [email protected]

[email protected] wrote:
I'm reluctant to post apple ID's in a public support forum, and would prefer to deal with this by private email. or phone.
Then contact Apple directly.
This is a user to user technical support forum. No one here has access to manage Apple ID's other than their own.
There is no Apple presence here.

I used to update my iPhone 4S applications whenever a new update is available, but at this time, "unknown error" displays after entering my apple id password. Anyone who could help, whom they might have experienced? Thanks

I used to update my iPhone 4S applications whenever a new update is available, but at this time, "unknown error" displays after entering my apple id password. Anyone who could help, whom they might have experienced? Thanks

Hi Christianjr,
When you say you reset your network settings, what do you mean, exactly?
I saw another post on this issue, and the poster indicated that they resolved the problem by turning off their cellular date option and wifi options in Settings, and then turned them back on.
Also, resetting your phone may help - press the Home and Power buttons at the same time and continue to hold both down until the Silver Apple appears. Once it is back up, click on the update option and see if it fixes the problem.
If none of those things work, then need to have details on what you did to reset your network settings....
Cheers,
GB

I keep getting an error message that says "the ipod cannot not be synced""an unknown error occured (13019).

I keep getting an error message that says "the ipod cannot not be synced""an unknown error occured (13019). I am trying to put albums on to my ipod by dragging and dropping. I have it set to manually manage music and videos. The albums appear in the music section under Devices, but they don't appear on my actual ipod.
I have never had any problems doing this before, only in the last few days.

I am having the exact same issue as you are with my iPod nano. This started happening the same day after I updated the iPod software, so I wonder if it is a bug within the software that Apple needs to resolve. I dragged 3 playlists of new music from my iTunes over to my iPod and sometime while it was trying to add those songs, the error 13019 popped up. Another note, which may not be related at all, was that iTunes told me at some point during this process (I believe before the error notification, but I'm not sure and that may be helpful to know) that I did not have enough room on the iPod to copy all of the songs, but it would copy as many as it could. What is curious, like in your situation, is now all the songs it supposedly copied appear to be on the iPod under the Device->iPod->Music label in iTunes when it is plugged into my computer, the playlists in question are also showing up there, and it does indeed say my memory is full under the iPod's general tab in iTunes. However, when going through my actual iPod when it is not plugged in, none of those songs or playlists are anywhere to be found.
Anyways, all the established solutions to the 13019 error do not apply to this situation, as my iPod has always been set to manually managed so "unchecking" the Sync Music option under the Music tab of the iPod and rechecking it will not work because it was never checked in the first place. And voice memos are obviously not applicable since we are not talking about an iPhone failing to sync music.
Unless anyone can provide a new solution here, I may just have to take my computer and iPod up to the genius bar. Any suggestions would be appreciated.

I keep getting the error: "lightroom could not import this catalog because of an unknown error" when trying to import from a catalog?

I have around 400,000 photos of 15 years so given the high number, I organized all my photos into 6 catalogs to avoid potential problems. All the photos and the catalogs are in a 4TB Seagate external hard drive. I use Adobe Lightroom 5 and I use a PC with the latest Windows Office 2013.
I wanted to have a NEW Catalog of all my rated 1 Star+ photos of all the years in a single Catalog. So I created what I called Star+ Catalog and I was told the best option is to import a Catalog at a time and given that there is no means to filter importing only Stared photos, I would import all the photos and then delete all the UnStared photos. I did that for Catalog Year 2014 but at the end gave me the message: "lightroom could not import this catalog because of an unknown error". It actually had imported around 40k photos from about 50k total. I tried again and again and every time I end up with the same thing. I created another new Catalog and stared from scratch and the same ting happened: the ONLY EXACT 40k or so photos were imported and the rest were not!! When I imported Catalog Year 2013 of around 45k photos, it worked perfectly. But when I imported Catalog Year 2012 of 35k photos, the same thing happened!!
I then tried exporting the needed photos to a new Catalog and that worked. But then when I try to import them again from my Master *+ Catalog I get the same error again!!
I also tried creating a new Master *+ Catalog and tried to import the Catalogs of each year into it and the same error happened again!!!
Any advice: 1) on how to solve this? and 2) if there is a better and easier way to create this Master Catalog of All Stared Photos of All my Catalogs?

This is a duplicate thread - see here

Another Unknown error (-50)

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