I got error message 4001 when trying to upload music to imatch

Ive just spent some time deauthorizing my Mac and toggling Genius and iTunes Match settings and the 4001 error went away. It wasnt a celebrated victory though...upon starting Step 2 of the matching process I was presented with a 4002 error!

I have been having this problem since last night. Sometime this afternoon I could not even get 1/2 way through "Gathering information to send to iTunes" I keep stopping and restarting sometimes it gets 3/4 of the way through and sits idle. So I no longer get the error message because I can not get that far. I tried the Option trick people are not posting but no luck. I believe my other problem to be that my Library is very large. 45K+ Over half are iTunes purchased though. So I should still be able to use the iTunes Match Program.

I came from the other thread of the same issue. Just I wanted to post the other way resolved the issue, for some reason, for me. I did these:

1. Press Command-J > Check iCloud Status checkbox.

2. Select one song in 'Music' > Right click the song > Click "Add to iCloud"

And it started the first step in the Match. And it went through the step 2 without the error! The process is now in the step 3, uploading songs. Weird, but this was the way the issue was resolved in my case.

I verify this solution. After repeated attempts using a quit/launch/disconnect/reconnect and other troubleshooting efforts I tried the solution mentioned further up this thread of holding the Option key when disconnecting from iTunes Match. That didn't work.

Simply put, the solution described here (the post to which I'm replying) did work. I simply selected a single song in my collection and followed the two steps indicated above. I've now got 4000+ songs "uploaded" to iCloud and iTunes is actually uploading a number of things (e.g., language instruction programs) that were not available in its library.

For anyone suffering through the reviled "Error 4001" problem I strongly recommend this approach. It works.

My thanks to KMKazie for figuring it out. Well done!

Holding down the Option key also worked to correct my 4001 error.

I actually received a follow up email from an Apple Customer Support Tech this morning concerning the 4001 error. They offered the same advice for correcting the issue by holding down the Option key. They've either found that out on their own...or just noticed the answer in this thread!

Not sure of the exact mechanics of this, but it appears that Apple Tech Support is now aware of the answer to this problem too.

Option-click worked for me as well. I actually found the fix on this site; glad to see the forums have picked this up as well: www.masteryourmac.net/master-your-mac-blog/itunes-match-error-4001-solution.html

KMKazie solution worked. I had tried everything else for days!! Thanks KMKazie!!! (see below)

I came from the other thread of the same issue. Just I wanted to post the other way resolved the issue, for some reason, for me. I did these:

1. Press Command-J > Check iCloud Status checkbox.

2. Select one song in 'Music' > Right click the song > Click "Add to iCloud"

And it started the first step in the Match. And it went through the step 2 without the error! The process is now in the step 3, uploading songs. Weird, but this was the way the issue was resolved in my case.

Like others, I am having this difficulty as part of my participation in the beta trial. I tried to update genius with no luck. I deauthorized and then reauthorized my computer, also no luck. I continue to get the 4001 error.

Yup, that worked for me too. While holding down the option key, choose "Turn off iTunes Match". Then turn iTunes match and all is well. I have know idea why that would work but it did after trying everything else.

I recieved useless links from support, not a single one of them references the 4001 unknow error. Thanks to those who posted holding down the option key while turning off iMatch. So far it seems to be working. I now have about 2000 of 9000 songs match and counting.

Yay! Pressing option key while selecting "Turn off iTunes Match" and then reenabling it again with a normal click did it for me!

As far as I know, what you can do with the option key on Mac, equals pressing the shift key on Windows.

Anyone have any other ideas? I have tried absolutely EVERYTHING mentioned and I can'y get mine to work at all. I wasn't a beta, I have started a ticket and support isn't being of much help.....Any help would be greatly appreciated.

Same problem with me. I just purchased iMatch subscription last night. Ive tried all the fixes I could find online and none of them work (option click, genius update, re-authorize, single track upload, etc.)

I tried turning iMatch on on a different computer with a different OS and still the same problem. I wish apple would address this problem as it appears to have been going on for some time now and hasnt been resolved.

It's unfortunate that the option click doesnt work for some of us. It sounds like it fixed things for a lot of people. Well here is to hoping if enough of us post our issue they will dedicate some people to this problem.

This error appears to have been going on for months for users so I cant imagine Apple has invested any significant time in trying to fix it 😟

Option click doing nothing for me either other than taking 80 minutes to go through Step 1 and fail again. iTunes Match added to the list of things I should have researched more fully before buying.

What an astonishingly poor service considering how many months it's been available. Fails for a significant percentage of users, gives no explanation for why, still no fix after months, and support staff recommend people come here for advice. Amazing.