HT202159 osx mountain lion an error has occurred

i cant download osx mountain lion it gets part way and then reports an error has occurred.....my imac is mid 2007 so is supposed to be able to be updated....i have been charged but cannot update.....!! help appreciated (ive tried to download 7 times now....

- Temporarily disable anti virus software if installed.
- Apps such as Little Snitch, Net Nanny, and Hands Off can prevent apps from downloading including Mountain Lion.
- Third party download managers are not compatible with the App Store.
For downloading Mountain Lion from the App Store, a high speed (broadband) internet connection is Gstrongly recommended by Apple as noted here > iTUNES STORE - MAC APP STORE - TERMS AND CONDITIONS
Keep in mind, If you need to reinstall OS X or repair the the startup disk using Mountain Lion Recovery, that requires broadband (high speed) access to the internet via Wi-Fi or an Ethernet connection. OS X is downloaded over the internet form Apple when OS X Recovery is used for reinstallation.
Mountain Lion is a 4.34GB file. If you are using a slow internet connection, the download may be timing out before it can finish. Your ISP determines your download speeds. Check with your ISP for upgrade options.
According to Step 1 here > Apple - Upgrade your Mac to OS X Mountain Lion.
Your iMac should be able to upgrade to Mountain Lion.

Similar Messages

Mountain lion download - error has occurred

purchased Mountain Lion updates for a whole computer lab and having trouble on the last 4 computers. an error has occurred. no option to redownload.

Have you tried Check for Unfinished Downloads from the App Store > Store menu?

HT1338 Mountain Lion "An error has occurred"

Running 10.7.4. Plenty of RAM available. No other downloads waiting. Mountain Lion purchased (receipt kept). MacBook plugged in. Stable wireless connection. About 4 seconds into installing ML, it stops. Just...stops. Visit to the App Store to check downloads. See the cute yet fierce Lion logo. Next to it, see "An error has occurred". The Click to Install box is blacked out. Back to the Lion purchase page where I am asked if I want to pay £13.99 to Install Mountain Lion. Again.
And there it sits in my downlaods pages, about as useless as a large piece of mucous on my screen.
Please? Anyone?
Again, I have no Applications waiting to Dowlnoad, sufficient RAM and all the other stuff I presumably would need. Except patience, which I'm running out of.

Disable the Firewall in System Preferences > Security & Privacy
Disable anti virus software before downloading apps.
Apps such as Little Snitch can prevent files from downloading the App Store.
Your Mac must be one of the following models to install Mountain Lion.
iMac (Mid 2007 or newer)
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
MacBook Pro (Mid/Late 2007 or newer)
MacBook Air (Late 2008 or newer)
Mac mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)
Xserve (Early 2009)
From here > Apple - Upgrade your Mac to OS X Mountain Lion.
If nothing above applies to your situation, reinstall the App Store by downloading and installing the OS X Lion Update 10.7.4 (Client Combo)
Then restart your Mac.
It's ok to do this even though you are already running v10.7.4

Download Mountain Lion an error has occured

I have a MBP early 2008 with 4GB Memory and 30GB free disk space.
So I know I can upgrade.
I have purchased Mountain Lion in the appstore but it will not download.
The download starts and gets to 79.34MB and then gives an error:
"an error has occured"
I have tried deleteing the appstore cache, logging out and quiting the appstore and then starting the appstore and logging back in, but none of it has helped.
Everytime it fails at exactly 79.34MB.
It is driving me mad, I hope someone can help.

- Temporarily disable anti virus software if installed.
- Apps such as Little Snitch, Net Nanny, and Hands Off can prevent apps from downloading including Mountain Lion.
- Third party download managers are not compatible with the App Store.
For downloading Mountain Lion from the App Store, a high speed (broadband) internet connection is strongly recommended by Apple as noted here > iTUNES STORE - MAC APP STORE - TERMS AND CONDITIONS
Keep in mind, If you need to reinstall OS X or repair the the startup disk using Mountain Lion Recovery, that requires broadband (high speed) access to the internet via Wi-Fi or an Ethernet connection. OS X is downloaded over the internet form Apple when OS X Recovery is used for reinstallation.
Mountain Lion is a 4.34GB file. If you are using a slow internet connection, the download may be timing out before it can finish. Your ISP determines your download speeds. Check with your ISP for upgrade options.

Cannot download Mountain Lion- "an error has occurred"

When I attempt to download Mountain Lion it gets to about 79MB, stops, and I get the following, "an error has occurred." No explanation of any kind. This was over Wifi, but I also tried using ethernet. Same result. This same thing happened when I updated to Lion. The same thing happens when trying to download using my laptop. The only way I was able to get LIon is to take my laptop to the library and download from there and transfer it to my iMac. I really don't want to do the same thing for Mountain Lion. Here is my setup:
iMac8,1 model ID
Wifi router - Qwest 2Wire (over 5 years old)
Currently using latest version of Mac OS Lion

I talked with my service provider (Qwest/Centurylink) and through some persistance they admitted that my 2wire router/modem (about 5-6 years old) has a 2GB file download cap on it. My solution was to buy a new router and modem. After that I was able to download Mountain Lion just fine. Hope this helps.

When attempting to buy mountain lion, "unknown error has occurred" is message when entering ITunes ID and password and am unable to download app.

"Unknown error has ocurred" message when trying to buy Mountain Lion on my MacAir laptop. Apple ID and password are operative with IPhone device but will not operate with ITunes purchase of Mountain Lion and ITunes advisor simply referred me to these discussion communities. What to do???

If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Select "/var/log/install.log" from the file list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar. Then select the messages from the last installation or update attempt, starting from the time when you initiated it. If you're not sure when that was, start over and note the time. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V).
If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Edit it out by search-and-replace in a text editor before posting.

HT202159 OSX Mountain Lion download problems

Hello,
I have been trying to download OSX Mountain Lion from the appstore on my 10.6.8 mac mini but the file stops downloading after about 10mb. I was able to download 10.7 without any problems but I am not able to downlaod 10.8 on either of my two machines. Both stop at about 10mb. Anyone seen this or have any possible solutions?
Thanks!
Travis

I have seen this, unfortunately there are 100 & 1 different things that can cause this. If you want to trouble shoot, let's power-cycle both your modem and router and see how that goes.

HT202159 After clicking install, "an error has occurred" pops up. Tried it several times for several days already, the same happens.

Just recently purchased Quartet for Keynote, downloaded it after clicking install, "an error has occurred" pops up. Tried it several times for several days already, the same happens.

Try the developer's site FAQ;s ...
http://graphicnode.com/support/faq/
Their contact info here > http://graphicnode.com/support/contact/
Check GateKeeper
Open System Preferences > Security & Privacy > General
Make sure App Store and indentifed developers is selected.
If not, click the padlock icon to make changes. You may be prompted for your admin password.
Then try downloading the app.

I can't download OSX Mountain Lion

This is what appears when I try to download the OSX Mountain Lion Software => Error, The product distribution file could not be verified. It may be damaged or was not signed.

Your MacBook is not compatible with Mountain Lion. See below for compatible models.
OS X Mountain Lion system requirements
To install Mountain Lion, you need one of these Macs:
iMac (Mid 2007 or newer)
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
MacBook Pro (Mid/Late 2007 or newer)
MacBook Air (Late 2008 or newer)
Mac mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)
Xserve (Early 2009)
Your Mac needs:
OS X v10.6.8 or OS X Lion already installed
2 GB or more of memory
8 GB or more of available.

HT202159 "An error has occurred" in red trying downloading OSX Mountain lion without any option in grey Button

I Purchased the update for Mac OSX Moutain Lion from Mac App Store. After several attempts to resume downloads. an message appeared as follow in red "An error has occured" The grey button next to it has no text in it and also does not respond when clicking on it. How can I restart or continue this download. U did try logging out and in again as well as restarting without any success. PLEASE HELP

Make sure your Mac qualifies to run Mountain Lion > Apple - Upgrade your Mac to OS X Mountain Lion.
Disable anti virus software and turn off the Firewall in System Preferences > Security & Privacy.
Then try here > Mac App Store: How to resume interrupted downloads
If that doesn't help, click Store from the App Store menu bar top of your screen. From the drop down menu click Check for Unfinished Downloads.
Keep in mind, for downloading Mountain Lion from the App Store, a high speed (broadband) internet connection is strongly recommended by Apple as noted here > iTUNES STORE - MAC APP STORE - TERMS AND CONDITIONS
If you need to reinstall OS X or repair the the startup disk using Mountain Lion Recovery, that requires broadband access to the internet via Wi-Fi or an Ethernet connection. OS X is downloaded over the internet form Apple when OS X Recovery is used for reinstallation.

HT202159 Mountain Lion Download: 'An error has occurred': Download stopped and its waiting for long.....download not starting

I purchased Mountain Lion and it was downloaded upto 4.2 GB but then my internet connection went down and it started showing as 'waiting'. when the connection came back it didn't resume the download and vanished. On the 'purchases' icon in Appstore it says 'an error has occurred' and even after pressing download again and again The download is not starting. On the finder Mountain Lion Icon shows as waiting.
What to do? I have tried unfinished downloads section in 'Store' but it says no unfinished downloads. Please help.

You can have iTS clear the DL que.
iTunes Store Support
http://www.apple.com/emea/support/itunes/contact.html

HT202159 Error has occurred while downloading Mountain Lion

An error has occurred and the button can not be clicked so I can't resume or restart download.
btw got the free download because my mac is new.

ok I solved it myself somehow.
1 open App Store
2 Sign in
3 Go to quick links>account
4 Unhhide Mountain Lion
5 Sign out
6 Sign it
7 Go to purchase tab
8 Mountain Lion has now an option to resume download.
This worked for me.
Good luck

HT202159 Whilst downloading mountain lion - I get in red "An error has occurred" and no ability to resume the download - amy ideas?

I am trying to download mountain lion on to a mac pro but the message I get is just an error has occurred. any suggestions are very welcome.

I was having this problem - I assumed it was the Apple server being overloaded, so I just kept retrying over the last couple of days. All my apps were upto date, so was Software Update. i tried logging out of the App Store, restarting and so on. No joy.
Anyway, eventually I did this, and it seems to have solved the problem.
Sign out of the App Store (in the Store menu)
Quit the App Store
In Finder - Go>Go to folder... (or Apple-shift-G)
Paste in the following "~/Library/Caches/com.apple.appstore"
It will take you to a folder. Delete the whole folder and empty the trash.
Launch the App Store. Sign in and then reclick the Mountain Lion buy. It won't charge you again. It then started downloading. I'm currently 5% downloaded - but I never got this far before.
Hope this helps!

HT202159 while downloading mountain lion, a message appears " an error has occurred". Nothing happens when I press the resume button.

while downloading mountain lion, a message appears " an error has occurred". Nothing happens when I press the resume button.

Can you try to create a new User Account, and then pull the OS through there?
Mac OS X 10.6: Creating a new user account
http://support.apple.com/kb/PH6651

HT202159 I started download of OS X Mountain Lion and it stopped with "An error has occurred" with no option to resume download. When I go to appstore it shows but again.

I started download of OS X Mountain Lion and it stopped with "An error has occurred" with no option to resume download. When I go to appstore it shows but again.

Try this Discussion...
https://discussions.apple.com/message/19032230#19032230

HT202159 osx mountain lion an error has occurred

Similar Messages

Maybe you are looking for