Every time I try to log in to the Mac App Store, I get red words saying "An unknown error has occurred" How do I fix this?

Try deleting the cache associated wi the App Store.
Quit the App Store if it's open.
Now open the Finder. From the Finder menu bar click Go > Go to Folder
Type or copy/paste: ~/Library/Caches/com.apple.appstore
Click Go then move the Cache.db file from the com.apple.Safari folder to the Trash.
Try the App Store.

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Every time i try to sign in to the mac app store i get the message 'an unknown error has occurred"

I can sign into the iTunes store but not into the Mac App Store. I don't have this problem on my other Mac running the same Mac OS X 10.6.8.

Try deleting the cache associated wi the App Store.
Quit the App Store if it's open.
Now open the Finder. From the Finder menu bar click Go > Go to Folder
Type or copy/paste: ~/Library/Caches/com.apple.appstore
Click Go then move the Cache.db file from the com.apple.Safari folder to the Trash.
Try the App Store.

Why every time I try to open InDesign CC on Mac OS Maverick I get a "heap corruption detected free list canary is damaged" message and the application crashes?

Why every time I try to open InDesign CC on Mac OS Maverick I get a "heap corruption detected free list canary is damaged" message and the application crashes?
PL

I am on Windows, but have a few saved Mac discussions that may help (or, may not... but free to read)
Mac and Root User http://forums.adobe.com/thread/879931
-and http://forums.adobe.com/thread/940869?tstart=0
Troubleshooting guide for Mac freeze
http://helpx.adobe.com/x-productkb/global/troubleshoot-system-errors-freezes-mac.html

I tried to download an app on the mac app store and it continues to say: "There was an error in the App Store. Please try again later. (null)" Please help me. Thank you.

I tried to download an app on the mac app store and it continues to say: "There was an error in the App Store. Please try again later. (null)" Please help me. Thank you.

Change your Date & Time settings to reflect automatic. It will fix the problem.

I have the iphone 5 and when I try and get new apps it says an unknown error has occurred. The password is correct

I have the iphone 5 and when i try and get new apps it says an unknown error has occured. The password is correct. A couple of times i have seen a little glitch in small lines of pixels across the screen. Started happening about the same time.....????

Did you read my response in your first post? Look here.
https://discussions.apple.com/thread/4912178

Everytime i try downloading something from app store on my iphone it wont download, it keeps saying 'an unknown error has occured' i dont know what to do. iv tried restarting my phone. Help?

everytime i try downloading something from app store on my iphone it wont download, it keeps saying 'an unknown error has occured' i dont know what to do. iv tried restarting my phone. Help?

Sign Out of your Account... Close All Open Apps... Perform a Reset... Try again...
Reset
Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears. Release the Buttons.
http://support.apple.com/kb/ht1430

Why am i getting an error message that says "an unknown error has occured" when i try to update my apps in the app store

Can someone please offer some suggestions why I am getting an error message that says "an unknown error has occured" when I try to download or update my apps in the app store?
Thanks!
disregard! i noticed someone else's post about signing out of the app store and signing in again and it worked.....

Hi ...
Try here > Mac App Store: "An unknown error occurred (100)" when purchasing
If that doesn't help, drag the App Store icon straight up off your Dock so it goes, "poof".
Now drag the App Store icon from your Applications folder to the Dock. Try updating your apps.

When I try to sign in to the App store, I get a message that says "An unknown error has occurred" and I cannot sign in.

When I try and sign in to the App Store, I get an error message that says "An unknown error has occurred". The Apple Store told me to contact Apple Care which I did. They determined it was not an issue with my computer and thought it was an issue with the App Store.
They had me contact the iTunes Store instead of the App Store because they said that was the technician I needed. The iTunes Store rep told me there was no issue with my iTunes account and told me "The issue could have been temporary, related to your internet connection, your local network, or your computer itself."
This issue has been happening for a few months and as I said above, Apple Care said it was not my computer.
Any suggestions?
Thanks

Restart your Mac then try again.

When I try to sign into my Apple ID account, I get a message that says "An unknown error has occurred" I reset my password but that didn't help. What do you suggest?

When I try to sign into my Apple ID account, I get a message that says "An unknown error has occurred". I reset my password but that has not helped. I am trying to update iPhoto. I just installed Maverick X. Thank you

Restart your Mac then try again.

Everytime i try to sign into my itunes account, it says: We could not complete your iTunes store request. An unknown error has occured (0x800b0101). What does this mean and how can i fix it?

Everytime i try to sign into my iTunes account, it says: We could not complete your iTunes store request. An unknown error has occured (0x800B0101). What does this mean and how can i fix it?

Hello zabetnz
Start with the article below to get access to the iTunes Store. If it does not work, then there are some links towards the bottom of the article for additional troubleshooting.
Can't connect to the iTunes Store
http://support.apple.com/kb/ts1368
Regards,
-Norm G.

Mavericks will not download from the App store. Repeatedly receive a message that "an error has occurred. Try again"

I have repeatedly tried to download Mavericks from the App store. When attempted from the update tab it fails and instructs me to try again from the Purchases tab. When I try it there, I receive an error message that "an error has occurred" and to try again. I have successfully downloaded other apps (both Apple and third party) but Mavericks won't do it.

Please read this whole message before doing anything.
This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
Step 1
The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you boot, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, reboot as usual (not in safe mode) and verify that you still have the problem. Post the results of Steps 1 and 2.

I can't log in to my apple ID on my iphone 4s, I can on the computer, but it says an unknown error has occurred whenever I try to sign in to download any apps or anything. Help!

I got it today, second hand, set up an apple ID and can log in perfectly fine on the computer, but I can't log in on my iphone!Not sure what's wrong but I've tried logging in like 10 times and it says unknown error EVERY time.

for the Points.
I have not heard of anyone being charged for this at an Apple Store.
If it was through an Apple Authorised Service Provider I am sure you will be able to convince them that they missed the end of the job.
(I have not seen any posts saying anyone has had issues using this route, but there are less of them)
8:10 pm Saturday; January 11, 2014
 iMac 2.5Ghz 5i 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

We have a family computer in our house. We have several ipod touches and one iphone. Every time I plug in my new iphone, the computer erases my contacts and puts my daughter's contacts on it. How can I stop this from happening?

Every time I plug in my new iphone, all my contacts get erased and my daughter's contacts appear on my phone as well as her pictures from her ipod touch. What do I need to do to keep this from happening?

How to use multiple iPods, iPads, or iPhones with one computer

My Safari software has stopped working. Every time I try to log in to the internet, I get an error msg dealing with an Apache server. It just started to happen a week or so ago. What's going on?

I have a Safari web browser that I have used since I purchased my Mac in 2008. Within the last week or so, I have been getting an error message, which says something like it cannot find the Apache back server or something like that. As a result, I have not been able to enter the web via Safari. I have Mac OSX, version 10.6.8. In the past, I needed an update to my operating system software to view on-line videos. Is there a similar problem with the operating software this time? Or has Safari gone off the air. I am utilizing Firefox to enter the web currently and I can continue to use it, but I would like to have a back-up web browser. Can someone help?
Jim Glenn

<<That may be so, but email is an inclusive part of the broadband package.
If the broadband service activated on a given date, then the included email facility should be working too. Anything else would be an altogether unacceptable situation for me...unless the broadband had been activated in advance of any agreed date.>>
I totally agree with this. Never before have I signed up for a service where email has taken longer to be activated than the broadband connection, in fact, it's been the total opposite, all my past providers activated my email account before the broadband was activated and I was able to start using the address immediately so that by the time bb was enabled, I was ll and truly up and running.
I do not want a hotmail account or any other type of email account, I want to use what I am paying for, btinternet.
So far, am not a happy customer and am beginning to wonder if I should have gone with another provider.
Sorry for the rant but I expect more from such a big company.
Alison.
From Alison, sent from my iPad 2

Every time I try to log into ANY website that is secured, I get an error message "This connection is untrusted."

The error message is:
This Connection is Untrusted
You have asked Firefox to connect securely to www.facebook.com, but we can't confirm that your connection is secure.
Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified.
What Should I Do?
If you usually connect to this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue.
www.facebook.com uses an invalid security certificate. The certificate is not trusted because no issuer chain was provided. (Error code: sec_error_unknown_issuer)
If you understand what's going on, you can tell Firefox to start trusting this site's identification. Even if you trust the site, this error could mean that someone is tampering with your connection.
Don't add an exception unless you know there's a good reason why this site doesn't use trusted identification.
Steps I have take so far:
Verified that system clock is correct
Cleared all cache, history, cookies, etc.; didn't help
Started Firefox in Safe Mode; didn't help
Disabled all Firefox extensions; didn't help
uninstalled and reinstalled Firefox using Control Panel; didn't help
Ran Microsoft Safety Scan for malware; nothing was found
Other information:
This problem exists ONLY in my user profile and ONLY in Firefox. All 5 other users can run Firefox with no problem. I can run IE and Chrome with no problem.
Problem exists in ALL secured (https) sites.
I use Avast and Windows Firewall. Had never heard of ESET or BitDefender before searching these forums.
A lot of the sites don't give me the option to Make an Exception. The two that I tried to make exceptions for, still wouldn't open.
Run Windows 7 64-bit

unfortunately the fiddler2 issuer in certificates might be a sign of unwanted software present on your pc that is intercepting secure network traffic. please go into the system control panel and uninstall programs like BrowserSafeguard, BrowserSafe, SafeGuard or other software that sounds suspicious and didn't get installed by you intentionally.
<br><sub>reference: https://support.mozilla.org/en-US/questions/982532#answer-520145</sub>
afterwards, run a full scan of your system with different security tools like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] & [http://www.bleepingcomputer.com/download/adwcleaner/ adwcleaner].
[[Troubleshoot Firefox issues caused by malware]]

Every time I try to log in to the Mac App Store, I get red words saying "An unknown error has occurred" How do I fix this?

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