Comments on: How to fix Core MIDI problems with OSX after using migration assistant or upgrading system

By: Jovan Broaden

Jovan Broaden — Thu, 29 Jul 2010 21:32:34 +0000

thanks alot worked perfect

By: liam

liam — Thu, 22 Jul 2010 15:30:54 +0000

Thanks a lot – great to have people out there to help with this annoying problem!!!!

By: lucio

lucio — Mon, 21 Jun 2010 18:51:26 +0000

I had the same problem. I solved it just moving to trash some Digidesign drivers. The terminal operation sounds good but I felt unsafe to perform it, then I found something online talking about Digidesign drivers which cause problems to Core MIDI, I erased them since I don’t need them and now everything seems to work properly…

By: N.

N. — Sat, 12 Jun 2010 21:17:40 +0000

WOW ! Thank you so much !

By: Pat

Pat — Tue, 01 Jun 2010 17:44:22 +0000

thank you sooooo much! Just one more road block fixed with snow leopard.

By: Dave

Dave — Wed, 12 May 2010 21:32:11 +0000

So this is the second time I have had this issue – the first time my only solution was to do a clean install. This time I do not want to do that as a full clean install takes at least 20 hours…

What I have tried
• sudo rm -rf /Library/Audio/MIDI\ Drivers/*
• Manually removed drivers
• deleted all preferences pertaining to audio & midi
• reinstalled all drivers for audio, midi, & ilok
• Used Pacifist to selectively reinstall the audio midi setup application and midi support files

The problem is the midi window of the “audio midi setup” application times out giving this error: “The MIDI Server can’t be opened.”
If I manually remove midi drivers the midi window and midi based apps will open. HOWEVER if I install any midi driver
(tried 4 so far) the midi server times out.

Does anyone have any other suggestions?

By: Pedro

Pedro — Thu, 25 Mar 2010 05:51:18 +0000

Thanks a Lot, i was almost crying everytime I had to open Reason… Greetings from Chile

By: Bobby

Bobby — Tue, 23 Mar 2010 18:00:36 +0000

Thanks Man……been having a lot of problems this. that trick worked

By: TritonKeyboarder

TritonKeyboarder — Tue, 02 Feb 2010 13:32:28 +0000

Man THAT WORKED…. I simply deleted the emagic driver and the system started the midi server
Thank you

By: Maxim

Maxim — Sun, 17 Jan 2010 18:06:12 +0000

tnx! this REALLY helped me out! this was pissing me off for a long time.

By: Thomas

Thomas — Wed, 06 Jan 2010 11:41:28 +0000

Hi, I’ve got a problem with my Alesis IO26 MIDI, as I see AlesisFirewire.plugin in your picture, maybe you could help me, if you own the same or similar device. I’ve had a lot of trouble with MIDI – Logic had MIDI timeouts, Audio MIDI setup had MIDI server problems when IO26 is connected. I’ve deleted the drivers with your terminal command and the audio interface works just fine, but I can’t use MIDI anymore. After reinstalling the device, I’ve got the same troubles like before.
Do you know a solution to this?
Thank You
Thomas

By: Felipe

Felipe — Sat, 02 Jan 2010 02:32:58 +0000

You rock…. God Bless you!

By: Fra

Fra — Tue, 29 Dec 2009 18:33:05 +0000

Seems to work! Many Thanks from Italy

By: James Howard Young

James Howard Young — Tue, 29 Dec 2009 11:12:25 +0000

You can check the directory I described above in the post to see if there are any drivers installed back into that directory when you launch the Audio Setup and experience the problem again. If so, it’s possible that something is installing itself from another application or utility and you could try to find out what that is.

By: cin

cin — Tue, 29 Dec 2009 04:17:15 +0000

it works for me only for one session. when i close the DAW or the Audio setup and try to open it second time, the problem is here again, and i have to repeat the procedure everytime i want to use midi…

Is there a way to fix it permanently?

By: Derx Brax

Derx Brax — Mon, 21 Dec 2009 08:17:55 +0000

Thank YOU so much!!! this problem has pissed me off for so long!

By: ash le rouge

ash le rouge — Thu, 17 Dec 2009 07:48:43 +0000

SICK THANKS DUDE X

By: d

Sat, 21 Nov 2009 08:16:54 +0000

thanks!!

By: David

David — Fri, 06 Nov 2009 09:08:56 +0000

Thank you so much from France!

By: Jaems

Jaems — Tue, 03 Nov 2009 11:09:19 +0000

Yeah it seems like the Terminal clean commend will wipe out your Rewire components. Best bet is to reinstall it after you run the hack. I've also updated the original post I'd like to get feedback if you can get it working.