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#31126 - 09/09/14 08:27 PM itunes Installation and System extension cannot be
MarkG Offline


Registered: 08/06/09
I have never had this problem before.
System extension cannot be used
The system extension “//System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the products vendor for an update.
This was the message that appeared after I installed the new iTunes Update for 11.4 today.
I have an iMac 2.7 GHz Intel Core i5 with 8 GB memory, I have System 10.9.4
I reinstalled iTunes after removing the AppleUSBEthernetHost.kext and same message. I went back and looked at the previous version in Time Machine of the file and it was the same 7.0. Everything seems to be working okay. Any suggestions are appreciated. The forums had 3 other people write in with no solutions.


Edited by MarkG (09/10/14 11:11 AM)

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#31127 - 09/10/14 01:43 AM The system extension “//System/Library/Extensions/ [Re: MarkG]
Green Shoots Offline


Registered: 09/10/14
Loc: Fife, Scotland
I too have the same message popping up on our iMac. I checked the system updates and it updated to 11.4 automatically this morning. Not sure whether I need to do something, everything seems to be working as normal as far as I can tell. Presumably they'll release a fix if it's to do with the update?

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#31128 - 09/10/14 02:40 AM Re: The system extension “//System/Library/Extensions/ [Re: Green Shoots]
gman89 Offline


Registered: 09/10/14
Same error here using OSX and 3.2 GHZ i3.

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#31129 - 09/10/14 04:44 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
MarkG Offline


Registered: 08/06/09
As an experiment, I redownloaded iTunes from Apple Site and TURNED OFF my iPad. Turned it off not put it to sleep and reinstalled and all went well. I do not have an iPhone and the iPad is my only extra apple device. There was no message this time and so far so good. Mark

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#31130 - 09/10/14 05:01 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
cat Offline


Registered: 09/10/14
Same error message using with 2.5 GHz and 4GB memory.

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#31131 - 09/10/14 05:50 AM Re: itunes Installation and System extension cannot be [Re: cat]
orokusaki Offline


Registered: 09/10/14
Same thing happening to me. Stupid, stupid Apple and their updates.

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro8,2
Processor Name: Intel Core i7
Processor Speed: 2 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Memory: 8 GB
Boot ROM Version: MBP81.0047.B27
SMC Version (system): 1.69f4
Sudden Motion Sensor:
State: Enabled

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#31133 - 09/10/14 07:54 AM Re: itunes Installation and System extension cannot be [Re: orokusaki]
grelber Offline


Registered: 08/05/09
Loc: North of 49th ||
Such bugs (due to apparent lack of attention to detail*) seem to occur every time Apple posts an update.
If this one is as widespread as it appears to be, iTunes 11.4.1 should be showing up on their Support-Download site in short order.

* In the old days parsimony, elegance and debugging were the hallmarks of application design, given the pragmatic necessity occasioned by extraordinarily small memory capacity of computers. Nowadays sloppiness in design and lack of efficient debugging seem to be the acceptable rule.

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#31136 - 09/10/14 08:28 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
ktrench Offline


Registered: 09/10/14
I tried to install a software update on my macbook this morning and am now getting the same message. Help?

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#31139 - 09/10/14 09:17 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
Ira L Offline


Registered: 08/13/09
Loc: California
Originally Posted By: MarkG
As an experiment, I redownloaded iTunes from Apple Site and TURNED OFF my iPad. Turned it off not put it to sleep and reinstalled and all went well. I do not have an iPhone and the iPad is my only extra apple device. There was no message this time and so far so good. Mark


Are you saying there might have been an interaction between your iTunes installation and your iPad?

I installed iTunes this morning and did not see that error message. Maybe Apple surreptitiously fixed it in the later install? Your successful reinstallation may reflect this.
_________________________
On a Mac since 1984.
Currently: 27" iMacs, Macbook Air, macOS 10.14.x,; iPhones, iPods and iPads galore!

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#31140 - 09/10/14 10:18 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
cyn Online

Administrator

Registered: 08/03/09
Would be useful for all of you to post which version of OS X you're running.

Did all of you who are getting this error install the iTunes 11.4 update beforehand?
_________________________
FineTunedMac Forums Admin

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#31143 - 09/10/14 10:30 AM Re: itunes Installation and System extension cannot be [Re: cyn]
Ozul Offline


Registered: 09/10/14
I'm having the same problem:
OSX 10.9.4
2.8 GHz INtel Core i5 Imac 8GB memory

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#31146 - 09/10/14 11:13 AM Re: itunes Installation and System extension cannot be [Re: Ozul]
peak Offline


Registered: 09/10/14
Same problem here. The error message just popped up. I cannot think of anything I might have done to cause the problem, and am wondering what the consequences of doing nothing will be.

MacMini running 10.9.4

By the way, has anyone found a solution to the iconservicesagent problem? (I am aware of the workaround (mkdir ...), but am wondering if there is a solution.)

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#31147 - 09/10/14 11:17 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
macMom Offline


Registered: 09/10/14
Had the same problem here today with this popping up after installing the update to iTunes 11.4.

System extension cannot be used
The system extension “//System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update.


OSX 10.8.5
3.06 GHz Intel Core 13
4 GB 1333 MHz RAM

I don't 'tether' anything to my desktop but would still like to know what, if anything, I need to do. Will iTunes still be able to install future updates?

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#31148 - 09/10/14 11:23 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
Cee Offline


Registered: 09/10/14
Loc: the Netherlands
Originally Posted By: MarkG
I have never had this problem before.
System extension cannot be used
The system extension “//System/Library/Extensions/AppleUSBEthernetHost.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the products vendor for an update.
This was the message that appeared after I installed the new iTunes Update for 11.4 today.
I have an iMac 2.7 GHz Intel Core i5 with 8 GB memory, I have System 10.9.4
I reinstalled iTunes after removing the AppleUSBEthernetHost.kext and same message. I went back and looked at the previous version in Time Machine of the file and it was the same 7.0. Everything seems to be working okay. Any suggestions are appreciated. The forums had 3 other people write in with no solutions.


Ik ook in nederland ( The Netherlands) me too does Apple het the solution for us
_________________________
duh

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#31149 - 09/10/14 11:25 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
Cee Offline


Registered: 09/10/14
Loc: the Netherlands

Oke komt het:

MacBook Pro
Software OS X 10.9.4 (13E28):
Serienummer W8046DQTAGU:
Videokaart Intel HD Graphics 288 MB:
Geheugen 4 GB 1067 MHz DDR3:
Processor 2,4 GHz Intel Core i5:
15-inch, medio 2010:
Modelaanduiding: MacBookPro6,2
Processornaam: Intel Core i5
Processorsnelheid: 2,4 GHz
Aantal processors: 1
Totale aantal cores: 2
L2-cache (per core): 256 KB
L3-cache: 3 MB
Geheugen: 4 GB
Interconnectsnelheid processor: 4.8 GT/s
Opstart-ROM-versie: MBP61.0057.B0F
SMC-versie (systeem): 1.58f17
Serienummer (systeem): W8046DQTAGU
Hardware-UUID: B52B7B19-B371-5526-B3FD-A0B45EB2C54E
Sudden Motion Sensor:
Status: Ingeschakeld
_________________________
duh

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#31150 - 09/10/14 11:36 AM Re: itunes Installation and System extension cannot be [Re: cyn]
macMom Offline


Registered: 09/10/14
Reply to: cyn

Posted moments earlier but replying to this post again here ...

I have ... Version 10.8.5

... and yes, I installed the iTunes 11.4 update just BEFORE the message popped up. I have checked and so far iTunes is working fine on my computer. Just wondering what, if anything, I need to do and if there will be problems with future updates to iTunes. Thanks so much!


Edited by macMom (09/10/14 11:55 AM)

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#31151 - 09/10/14 12:07 PM Re: itunes Installation and System extension cannot be [Re: cyn]
mftx Offline


Registered: 09/10/14
Same problem immediately after installing iTunes update.

OS X 10.7.5

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#31152 - 09/10/14 01:37 PM Re: itunes Installation and System extension cannot be [Re: MarkG]
freelance Offline


Registered: 08/05/09
Loc: London, UK
I also had this message after installing iTunes 11.4. I ran my OS 10.6.8 Combo installer and have not experienced any problems since.
_________________________
Mac Pro dual-2.4 GHz, 10.13.6, 24 Gb RAM, 250 Gb Samsung EVO SSD/Velocity Solo PCIe card, 2x3Tb Seagate HD, 1x3Tb Hitachi HD, Dell 2408WFP; Canon PIXMA iX6550; CanoScan 8800F; MacBook Air 1.8 Ghz, 8 Gb RAM, 10.14.5, 256 Gb SSD; Vodafone Home Hub/BT Wi-Fi Extender.

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#31156 - 09/10/14 08:25 PM Re: itunes Installation and System extension cannot be [Re: MarkG]
j moore Offline


Registered: 09/10/14
Same problem just now when installing the iTunes 11.4 update.

Running 10.7.5 on a 2.4GHz i5 MacBook Pro.

Anyone have any idea what the error means? Otherwise this thread will continue to just be one "me too" after another.

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#31160 - 09/11/14 06:08 AM Re: itunes Installation and System extension cannot be [Re: j moore]
freelance Offline


Registered: 08/05/09
Loc: London, UK
This is the best post I can find: https://discussions.apple.com/thread/6526427

I used Pacifist to remove the .kext file from the iTunes install package and replaced the old .kext in the System/Library/Extensions folder. Seems to be working okay on 10.6.8 and 10.9.4.
_________________________
Mac Pro dual-2.4 GHz, 10.13.6, 24 Gb RAM, 250 Gb Samsung EVO SSD/Velocity Solo PCIe card, 2x3Tb Seagate HD, 1x3Tb Hitachi HD, Dell 2408WFP; Canon PIXMA iX6550; CanoScan 8800F; MacBook Air 1.8 Ghz, 8 Gb RAM, 10.14.5, 256 Gb SSD; Vodafone Home Hub/BT Wi-Fi Extender.

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#31162 - 09/11/14 07:34 AM Re: itunes Installation and System extension cannot be [Re: MarkG]
Robes Offline


Registered: 09/11/14
Hello All-

I had the AppleUSBEthernetHost.kext problem when downloading iTunes 11.4. This is a widespread problem, many forums have addressed it.

I found help here: https://www.discussions.apple.com/message/26574841#26574841

See Lanny’s post, I did as he suggested.
1st- Close iTunes.
2nd- Delete the system extension “AppleUSBethernetHost.kext” from here:
//System/Library/Extensions/AppleUSBethernetHost.kext

3rd- go to iTunes 11.4 download, here: https://www.apple.com/itunes/download/
click on the Download Now link.

4th- Find the downloaded iTunes11.4.dmg file, open it, now open the Install iTunes.pkg

After the re-install as above I got the successfully installed window and no “pop up”
improperly installed AppleUSBMultitouch.kext warning window.

Robes

My System:
27" iMac 2.8 GHz Quad Core i7; 8 GB DDR3 SDRAM 2x4; 2 TB Serial ATA Drive; ATI Radeon HD 4850 Graphics with 512 MB; Using 10.9.4 Mavericks. AudioEngine A5's


Edited by Robes (09/11/14 07:36 AM)

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#31164 - 09/11/14 09:47 AM Re: itunes Installation and System extension cannot be [Re: grelber]
ChrisR Offline


Registered: 09/11/14
Totally agree. Against my better judgment I hit Update on itunes, even though I have no ios8 device. So I had to do the manual remove kext, download, reinstall iTunes. This is the reason I stopped updating my Airport express and any other Apple app that says "improvements" for connection to Cloud, ios, or anything else I do not use. It is not worth the headache to have to fix something that wasn't broken to start out with.

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#31179 - 09/12/14 07:25 PM Re: itunes Installation and System extension cannot be [Re: Robes]
abernardi Offline


Registered: 09/12/14
Thanks Robes, that seems to have done the trick for me. I just want to point out to everyone I too had my iPad connected when I first installed the system update from Apple. This time when I reinstalled iTunes I disconnected the ipad first.

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#31181 - 09/13/14 05:04 AM Re: itunes Installation and System extension cannot be [Re: cyn]
Cee Offline


Registered: 09/10/14
Loc: the Netherlands
I did post it and where is the answhere?
_________________________
duh

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#31182 - 09/13/14 07:07 AM Re: itunes Installation and System extension cannot be [Re: Cee]
MacManiac Offline
Moderator

Registered: 08/04/09
Loc: Paradise....on the central Ore...
Quote:
Hello All-

I had the AppleUSBEthernetHost.kext problem when downloading iTunes 11.4. This is a widespread problem, many forums have addressed it.

I found help here: https://www.discussions.apple.com/message/26574841#26574841

See Lanny’s post, I did as he suggested.
1st- Close iTunes.
2nd- Delete the system extension “AppleUSBethernetHost.kext” from here:
//System/Library/Extensions/AppleUSBethernetHost.kext

3rd- go to iTunes 11.4 download, here: https://www.apple.com/itunes/download/
click on the Download Now link.

4th- Find the downloaded iTunes11.4.dmg file, open it, now open the Install iTunes.pkg

After the re-install as above I got the successfully installed window and no “pop up”
improperly installed AppleUSBMultitouch.kext warning window.

Robes


This response earlier in this thread should help you with the solution.....

I'm certain that it's the "english as a 2nd language", however, I don't see where you identified your operating system version of OS X in your previous posts....I do see that you are on a mid-2010 15" MacBook Pro with 4 GB of ram.

Let us know if the quoted post above is helpful and thank you for joining us here.
_________________________
Freedom is never free....thank a Service member today.

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