iCloud music library error (4001)

I Have 23,000 songs and am experiencing the same 4001 error...

So basically all users with a large music collection just can't use Apple Music … great 😕

So you get screwed for being a good iTunes costumer in the end xD

Given that this is sort of a beta, Apple needs to get its ish figured out, otherwise no one with a large music collection will be able to subscribe to one of their services… cause as long as you are unable synchronise you won't be able to add music within the service!?

There's a logical fallacy in there, somewhere 😝

so with 130.000 tracks i still will be having this syncing problem áfter the increase to 100.000 !!!!???

Apple....get your sh*t together man. Years and years of ripping of professional purchased and promotionally obtained material will keep me from using Apple music...???????

Here's the thing. I had iTunes Match running before just fine. I have 28.607 songs in my iTunes library presently, of which 6,238 were purchased from iTunes. The rest are either full resolution Apple Lossless files ripped from my rather extensive CD collection built up since the late 1980s (the vast majority of the songs) or MP3 files purchased from Google Music or Amazon (probably less than a couple hundred songs). So I should be way below the 25,000 song limit. (Songs purchased from iTunes don't count towards the limit; at least, they didn't in iTunes Match.)

Now here's the kicker. iTunes Match was working fine before. So theoretically Apple Music should work fine now. And it did work fine on my MacBook Pro when I turned it on, matching everything up quite nicely. Ditto my iMac at work. However, on my home iMac, whenever I activate the iCloud Music Library, I keep getting the "Genius results can't be updated right now. An unknown error occurred (4010)" message. iTunes will gather information about my library, then chug along waiting for results from Apple, and then, after 15-20 minutes of this, I get the error message. This happens only on my home computer, and I've tried a dozen times. I've tried logging out and logging back in, deauthorizing and reauthorizing the computer, etc. No go.

The only difference between my MacBook Pro and my work iMac compared to my home iMac is that all my music files not purchased from iTunes reside on my home iMac, while on the other computers I leave the music in the cloud and stream it when I want to play it. It makes me wonder if for some reason Apple Music is counting my purchased tunes against the limit only for this computer. Why, this would happen, I have no idea. Apple Music works fine on my iPhone and iPad.

Whatever's going on, it's ******* me off royally. Am I going to have to delete 4,000 songs and then re-add them? That would be tedious indeed. As big a pain as it would be, I'm now half-tempted to copy my iTunes library to an external hard drive, delete every song in the library, empty my iCloud Music Library using one of the other computers, and then see if Apple Music works on my home iMac. Then I'd have to add all 20,000+ non-Apple tunes back and have them match again. But that would be very tedious and I am not anxious to do that at all, particularly when I know there's no guarantee that it would work.

Had the same problem (100,000 songs in library, with all 550GB of music on an external HD, and a complete backup elsewhere...). Actually, when I first switched on Apple Music (with iCloud Music Library) on Jul 1st, it seemed to work perfectly. Then, just for testing, I switched iCloud Music Library off, and that broke it - I could not get it back on, all I got was the dreaded 4001 error.

Now it's working again, in a way. This is what I did: Did a Library Export to .xml. Created a new empty iTunes library (hold Alt when launching iTunes). Imported the library from the .xml file, with "Copy files to iTunes Media Folder" disabled (let it run over night). Now I have a new clean iTunes installation, with iCloud Music Library enabled, and for the last couple of hours Apple Music has been busy uploading and matching my music in the background.

Couple of things: most of my cover art made it through the transfer, but about 10% is missing and would need to be added manually, and a small number of albums now refuse any cover art. I have noticed one cover (nudity) that has been exchanged for a safer version. So far I have not noticed any obvious changes to tags. I am beginning to see duplicate tracks for many albums - one track local with a "waiting" icon, and the same track again with a "download" icon. So, when I play the album, each track plays twice. Nice. When I make a playlist "iCloud status is Apple Music" I get a list of about 1000 albums (out of 6000 total), most of which are local, not bought from iTunes, and have no iCloud Status Icon of any kind attached. Very strange.

Will keep it running in the background for a couple of days, and see what happens.

I have more than 74 thousand songs in my music library, approximately 600 GB. I am trying to get new songs added to my library from the apple music service but I keep getting error 4001. I can't even get genius to work properly. See screenshot:

OK, I've tried some other things. One thing that seemed to help (although the end results remain to be seen) was to delete all the files for every tune I've ever purchased from iTunes and just leave the tunes in iCloud, available for streaming (i.e., not hiding them, but only moving the files to the trash), then rebooting and restarting. That was around 7,000 tunes, which brought my total actual files to over 21,000, well under 25,000. I then turned on iCloud Music Library a couple of hours before I went to bed last night. At the time I turned in for the night, the progress meter was about halfway through scanning my iTunes library.

When I got up, the iTunes library looked correct, with filled in heart symbols next to tunes and albums that I had hearted on my other computers and on my iPhone. These hadn't shown up before. So far so good. However, the progress monitor still said "waiting for Apple to deliver Genius results," and there was still a spinning indicator. I took this as a favorable sign because every time I had tried to get iCloud Music Library up and running before, it took 3 hours or so to scan my library followed by about 20-25 minutes of chugging along with the "waiting for Apple to deliver Genius results" message before crapping out and giving me the 4010 error. Here's hoping it's just taking a very long time to finish; I'm hoping it's done by the time I get home tonight, but if it isn't I'll let it keep running a couple of days to see what happens. I've heard stories of others with large music libraries whose first iCloud Music Library sync took two or three days. Also, this morning I observed it in the "waiting" mode for well over an hour. Every time before, the sync crapped out within 20-25 minutes. So I'm cautiously hopeful.

same here!!!!!!

I've been having this issue as well as Error 4010. Last night suddenly iTunes on my Mac Mini finally recognized and accepted iCloud Library and my library appears synced to my iPhone now. It was showing 35106 tracks and now shows over 38000 due to albums I had added from my Beats subscription. Changes I make on one device are also now reflected on the other. After many innumerable attempts to update Genius, add iCloud Library from preferences, reauthorizing and reauthorizing computers, using Match from the iTunes Store, signing out and signing back on, it just suddenly started working. There unfortunately is no step by step solution. Hopefully you have had the same experience. Cheers.

I guess Apple doesn't read the problems here or just doesn't care.

I just spent 1 hour on the phone trying to work with people on this issue only to be eventually told (when I got through several levels of people who

can't even troubleshoot anything) that they can't talk to me about the issue because I'm running the Beta version of Yosemite. (I'm on 10.5.5). This person claims that the issue has to do with the OS version and if I were on 10.4 they would have a fix for it.

I think this is completely BS. Do we have people here with 10.4 getting this error? How about El Capitan Beta? Same issue?

"Do we have people here with 10.4 getting this error?"

Yes.

Almost 33.000 songs in my library.

And I've got several other problems since iOS 8.4 and iTunes 12.2 were released.

Smart playlists don't work anymore and this messes up my 'system' of listening. The star rating is lost on thousands of tracks. Songs I don't like that much anymore will show up in the shuffle any time (in some cases everyday), just because they were purchased in iTMS. Meta data like 'last played' or 'times played' are not being synced anymore.

I was a very satisfied user of iTunes, so far.

After receiving the 4001 and 4010 errors (mostly 4001), I finally got the Apple Music iCloud service to work on Windows. If you try this, you may want to do it in the reverse order (warning, it was a pain):

1. Created new library (holding shift (option) while starting iTunes). Removed songs from new library until under 25,000.

(4001 error still)

2. Scanned every mp3 using "MP3 Validator". Removed the files that would not scan or could not be repaired from the new iTunes library.

(4001 error still)

3. Removed all Comments tags in iTunes (select all, get info, space/backspace in comments tag) to try and force an update and remove any bad characters.

(4001 error still)

4. Removed everything that was not specifically an mp3 file.

(Finally started working)

This was laborious, but might have worked by removing any non-mp3 files and having less than 25,000 songs (though Apple is expected to increase this limit to 100,000 in the near future).

This solution worked perfect for me. Thanks a lot!