System Extension can not be used

I have recently updated iTunes to the latest version. During the installation, a pop-up error message appeared saying "The system extension "System/Library/Extensions/AppleUSBEthernetHost.Kext" was installed improperly and cannot be used. Please reinstalling it, or contact the product's vendor for an update".
I have tried to reinstall iTunes, but no help. What could this issue and what is the fix ??

Open Terminal in the Utilities folder. Paste the following at the prompt:
sudo chown -R root:wheel System/Library/Extensions/AppleUSBEthernetHost.Kext
Press RETURN. Enter your admin password when prompted. It will not echo to the screen so type carefully. Press RETURN again.
Restart the computer.

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System extensions can't be used

After a major freeze I managed to restart using the install disk and did a major cleanup. But I can't print anything -- and suspect a problem with one of the automatic updates from Mac involving the printer drivers. I keep on getting notices re 25 system extensions that can't be used -- nearly all have got .ktext on the end. How do I find them, and should I uninstall / reinstall? If so, where do I get them from?

In Finder, do these files show in /System/Library/Extensions ?
& from Finder, what exactly happens when you attempt to remove them ? (you should get a prompt asking for an admin name/pass). If not, select one & see what the sharing/permissions section of Finder - File - Get Info looks like...
If you use an hp printer, I'd (re)install the update.

I use a 10.8 system and can not get Terminal or Textmate to accept a password. I actually can't type it when prompted. Any ideas?

I use a 10.8 system and can not get Terminal or Textmate to accept my password by that I mean, neither will even allow me to TYPE it in.
I need this to edit hosts files. I've used Macs for years but am not that wise on the inner workings. HELP!?

If you type a password into Terminal it will not appear on the screen at all, just enter it and press return.

Adobe 9.1.3 and FireFox 3.5.1+ "...can not be used to view PDF files in a Web Browser"

This is the issue but I'm not sure there is a resolution:
Firefox: Version 3.5.1
Adobe: Version 9.1.3
When navigating the web, click a URL that opens a PDF inside the browser and you get an error * "The Adobe Acrobat/Reader that is
running can not be used to view PDF files in a Web Browser". Please exit Adobe Acrobat/Reader and exit your Web Browser and try again". I did read a post that doing a "repair" from the Adobe Reader application should fix this, they also reference a few registry keys to check becuase the post states it's lost the application path to Adobe version X. I don't necessarily buy that "fix" and here are my details below.
In FireFox if you navigate to Tools > Options > Applications > Adobe Acrobat Document
You're given choices:
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Save File: Works, saves the file to a directory on your PC
Use Adobe Reader 9.1 (defau...: Works, opens your PDF's outside of your web browser
Use Adobe Acrobat (in Firefox): DOES NOT WORK, produces afore mentioned error *
Use other...:
IE seems to just work as expected.
If you open Adobe Reader > Edit > Preferences > Internet > Check "Display PDF in browser" - DOES NOT WORK, produces afore mentioned error *
This would seem to be an Adobe error rather than a FireFox web browser problems since FireFox does seem to know the correct path although I suppose you can't rule out that this is a FireFox problem since 2 out of the 4 PDF open options DON'T WORK.
Any thoughts on this issue would be greatly appreciated.
Other information:
Adobe 8.1.5 works perfectly with FF 3.5.1+ when opening PDF's in the web browser, we also had no problems with previous versions either.
MSI push via Active Directory from Adobe 8.1.5 upgrade to Licensed Distribution I signed up for, Adobe 9.1.3 which was upgraded from 9.1.0, to 9.1.2, to 9.1.3 via an MSP patch.
Operating system: Windows XP SP 2, plenty of RAM, plenty of Drive
IE version this works with the new version of Adobe 9.1.3 is version 7 (7.0.5730.13)
Our FireFox MSI's come from Front Motions website and as far as I know we've never had problems with their MSI's, also tried the new release of FF 3.5.2 from their website.
I think that about covers it. Anyone else experiencing the same problems or have a patch?

After troublshooting this for the entire day today the issue seems to be a MIME problem.
If everything is woking perfectly, in Tools > Options > Applications...
You should see 4 or more things related to Adobe like "Adobe Acrobat Forms Document", etc. If you don't see at least 4 MIME entries either your Adobe installation is hosed or your FF installation is hosed. I haven't figured out which is causing the issue.
What I did was remaster my patches from my original Adobe 9.1.0 MSI with the two updates via the command line in the directories with the source files. On the 9.1.0 original file I first remastered my MST transform with the Adobe MST utility. I then applied my patches.
msiexec /a AcroRead.msi /p AdbeRdrUpd912_all_incr.msp
msiexec /a AcroRead.msi /p AdbeRdrUpd913_all_incr.msp
I then uploaded that to my network share, unlinked my group policy, made a new group policy, added a batch file to delete adobe.com from program file and the desktop on system startup even though my MST was supposed to take care of that - it's not a perfect world is it? :-)
I then reapplied my GPO's for both FireFox 3.5.2 and Adobe 9.1.3, I checked to make sure the MIME extensions were there and they were. You might have to go into your Adobe Preferences and select that open in browser setting depending on what happens or adjust your MIME settings in FireFox's options but it should work.
That's what worked for me. It's possible a few other things I did along the way tweaked it out, in my group policy on the first run I did select to upgrade previous group policies, for the remaster and repush I didn't select any previous GPO's to upgrade.
It's hard to tell what one thing tweaked it out or what combination of things tweaked out the install. I did also reinstall Adobe 8.1.5 and FF 3.0.10 before doing all this since our machines currently have that setup, I'm not sure if that affected it either, it's just hard to tell but I don't think it did simply because I had done that several times in troubleshooting this issue.
If anyone else has more specifics that would be great!

Chrome - Adobe-Acrobat/Reader can not be used to view PDF files in a web browser.

I can't view PDF files via Chrome (it works on Internet Explorer but I prefer Chrome) - the error below has arisen recently on Chrome, though I can't see what has changed.
"Acrobat plug-in
The Adobe-Acrobat/Reader that is running can not be used to view PDF files in a web browser. Please exit Adobe Acrobat/Reader and exit your Web Browser and try again."
I have looked through Forum articles on similar errors and have tried the following(text copied from other Forum entries)
Repair Adobe Acrobat (from Acrobat)
Repair Adobe Acrobat (from Control Panel
Configure Acrobat as a helper application: Choose Edit > Preferences., Select Internet on the left., Deselect Display PDF In Browser Using [Acrobat application], and then click OK.Quit Acrobat or Reader
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Repair the HKCR\AcroExch.Document registry key: Navigate to HKEY_CLASSES_ROOT\AcroExch.Document., Right-click AcroExch.Document and select Delete; make sure that you have the correct key, and click Yes on any prompts, Right-click AcroExch.Document.7 and select Delete; make sure that you have the correct key, and click Yes on any prompts. Repair your Acrobat installation
None has solved the problem. However it still works ok with IE. But I want to stick with Chrome because I find IE is so slow!
I am using Vista, with Adobe Acrobat standard 9.5.2 and Google Chrome version 23.0.1271.64 m which is marked on Chrome as 'up to date'
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I think I have discovered the answer to my own question!
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A function can not be used in Applet.what's wrong?

Here is a function.
private String LoadFile() {
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http://www.javaworld.com/javaworld/jw-12-2000/jw-1215-security.html#sidebar1

A function can not be used in Applet.what' wrong?

Here is a function.
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String input;
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Don't you think it would be a bit of a security risk if any applet you downloaded from the web (unknowingly) could read/write to your file system....
Applets have strict security applied to them, and file i/o is one of the restrictions. There are ways around it, but for the moment I'd suggest you build a bridge and get over it.
Cheers,
Radish21

Cant open pdf file ..it says....the adobe/acrobat reader that is running can not be used to view PDF files in a web browser. please exit adobe/acrobat reader and exit your web brouser and try again

cant open pdf file ..it says....The adobe/acrobat reader that is running can not be used to view PDF files in a web browser. please exit adobe/acrobat reader and exit your web browser and try again

-> [[Troubleshooting extensions and themes]]
-> Clear Cookies & Cache
* https://support.mozilla.com/en-US/kb/Template:clearCookiesCache
-> [[How to clear the cache#w_clear-the-cache|Clear the Network Cache]]
'''Plugins Updates'''
Your Flash plugin is quite older. You need to update it.
* Adobe Flash Player 11.0.1.152 (3.59 MB)
* http://get.adobe.com/flashplayer/
Your Java plugin is quite older. You need to update it.
* Java Version 6 Update 29
* http://java.com/en/download/index.jsp
* [[Using the Java plugin with Firefox]]
-> Update All your Firefox Plugins
* https://www-dev.allizom.org/en-US/plugincheck/
* http://www.mozilla.com/en-US/plugincheck/
'''When Downloading Plugins Update setup files, Remove Checkmark from Downloading other Optional Softwares with your Plugins (e.g. Toolbars, McAfee, Google Chrome, etc.)'''
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This extension can not be installed

I just updated my software and now each time dreamweaver opens it gives me a message:
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What does this mean?
I use Dreamweaver CS5, on Windows 7
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No one can help me then on this issue?
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Extension can not be installed requires Illustrator version in range of 15 and 15.9

This extension can not be installed, it requires Illustrator version in range of inclusively between 15.0 and 15.9.
Some of our customers are experiencing this error message while attemtping to install Illustrator CC using Extension Manager CC.
This seems to be an issue on OSX Mavericks.
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Hi Carl, this extension was built with Extension Builder 2.1 and the mxi file is automatically generated.
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Is it possible that there is an issue with the latest update to Extension Manager?
Please advise.
Best,
Dmitriy

BI7 Transport system active can not save error

Transport system active can not save error
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Has anyone experienced this issue before ?? Pls suggest

Hi Kristene,
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This apple id can not be used to activate the phone

hi
i restored my phone days later but i dont why i can activate my phone
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When your account becomes disabled, Apple provides the following recommendation:
"This message means that someone tried and failed to sign in to your account multiple times. The Apple ID system disables the account to prevent unauthorized people from gaining access to your information. You need to reset your password, following the instructions at the Apple ID website".
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Cant open PDF files..It says the adobe acrobat reader that is running can not be used to view files in a browser..plz suggest the solution.thanks

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Regards
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Hi adityabhargava01-
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http://www.mozilla.org/en-US/firefox/new/
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I just got Windows 7 and have been having problems since loading it. Most of my drivers only go to Vista and don't recognize 7.
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I think I have discovered the answer to my own question!
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System Extension can not be used

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