Mac App Store won't work

I just upgraded my iMac to OSX 10.6.7 from 10.6.6 and Mac App Store will not open. Its icon is dimmed in the Applications Folder and I get a application crash and report window whenever I try to open it. For what it's worth, it wasn't on my machine when I had 10.6.6.

You might want to purchase an external hard drive to use as a back up. Time machine is great for backing up everything on your Mac and you can get an external hard drive for less than $100.
If you are not sure which may be corrupted you can actually trash all of the Preferences in your Users, Library, Preferences Folder and restart. Be sure to save all important settings first as you will have to reset them in some instances (such as your Mail.app settings). Or, you can down load system maintenance utilities which can look for corrupt preferences. TinkerTool System is excellent and is shareware. It's worth the small price. Also, Applejack which is free. I use both.
If you reinstall from your install disk be sure to use the Archive and Install setting. Everything on your Mac will be saved.
Before you go through the reinstall though, I suggest you download, install and use Applejack first. It's very user friendly and may solve your problems. Read about it first before using it. It's a trip to watch if you haven't seen Terminal.app in action.
You can download Applejack and TinkerTool System from macupdate.com.
Again, back up all your stuff!

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Mac App Store Won't Work After Upgrading HDD

I'm on a Macbook Pro 2011. I had Mavricks. I downgraded my OS because I had hardware that wouldn't work with Mavricks. I also upgraded my HDD. I tried to open Mac App store but it won't open. The icon will appear on my dock and the App Store title bar appears, but all the opions in the menu are greyed out and not clickable.

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.
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Click the Clear Display icon in the toolbar. Then try the action that you're having trouble with again. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message (command-V).
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
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. Anonymize before posting.

My app store won't work on my iPod Touch 4gen running on ios 6.1.5 and when I open app store it says "cannot connect to iTunes Store" i shut my ipod down and turned it back on but it still dosn't work but it will open on my Mac Book Air

My app store won't work on my iPod Touch 4gen running on ios 6.1.5 and when I open app store it says "cannot connect to iTunes Store" i shut my ipod down and turned it back on but it still dosn't work but it will open on my Mac Book Air. If sombody could tell me how to fix this that would be awesome!

Can't connect to the iTunes Store

Installing 10.9.2, "shutdown because of a problem", now Mail won't open and App Store won't work.

While installing OS X 10.9.2, my MacBook Pro suddenly "shut down because of a problem" (which isn't the first time that happened). Checking the Apple menu and "About this Mac" it says I have 10.9.2 installed. I tried to see if I could reinstall the update, figuring something went wrong when the computer shut down, but the App Store won't work, clicking on "Updates" or any other tab doesn't change the screen from the App Store icon in the center. Mail also won't open, which is what I ; I tried to see if I could reinstall the app, but I don't have the CD that the support page said I needed. It seems to be only Mail and FaceTime that won't open so far. How do I fix this?

I took it in to my university's apple care and they wiped and reinstalled the OS.
Next time I will just go in and ask, since it doesn't look like anyone else is getting any real help with this problem!

Updated to 10.8.5 and now app store won't work?

I have just updated my Mac 10 version 10.8.5 and now it is saying that the App Store won't work with this version. Itunes also won't open as this obviously hasn't updated properly either.
Has anyone else had this problem? I don't seem to be able to reinstall the App Store either?

Try the following....
Mountain Lion Recovery
Boot up from your computer by holding down the command+r keys. This will take you to the recovery drive.
Select Disk Utility & hit Return.
In Disk Utility select the HD on the left & click on Repair Disk (bottom right).
When done, repair permissions from your desktop DU and restart your computer. Check SU for further updates.
Post back your results.

My mac app store won't load and when click it nothing happens happens

my mac app store won't load and when you click it nothing happens...it was okay for the past months but now i don;t know why it won't open...please help...

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 documents or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this behavior; 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.
Please take this step regardless of the results of Step 1.
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 turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up 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 startup 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, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of Steps 1 and 2.

My 10.8.3 update did not install properly citing an 'Unknown Error'. Now, my Mail and Mac App Store aren't working. What went wrong and how do i fix it ?

My 10.8.3 update did not install properly citing an 'Unknown Error'. Now, my Mail and Mac App Store aren't working. What went wrong and how do i fix it ?

I tried this and still have the same problems. If I open Address book or the Mac App Store I get the library rebuild popup and a hang. I created a fresh user and then things are better apart from the printing issue. Its clearly some 3rd party software issue but the crash logs are meningless to me. I used the excellent Etre check app from http://www.etresoft.com/etrecheck so I have a list of what is being loaded and can compare clean and crashed user info but as I cant work out which of the startup items, launch agents, launch daemons etc that are causing the problem.
I have eliminated Dropbox, Mac Keeper and Witness, and it isnt related to my exterrnal LED cinema dispay or my external thunderbolt drives, or any USB devices if thats any help to anyone else. Info from Etrecheck follows -
Kernel Extensions:
          com.oxsemi.driver.OxsemiDeviceType00          Version: 1.28.7
          com.rogueamoeba.InstantOn          Version: 6.0.2
          com.rogueamoeba.InstantOnCore          Version: 6.0.2
          com.Cycling74.driver.Soundflower          Version: 1.5.3
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
             [not loaded] com.adobe.fpsaud.plist
             [not loaded] com.adobe.SwitchBoard.plist
             [not loaded] com.bombich.ccc.plist
             [not loaded] com.dymo.pnpd.plist
             [not loaded] com.intego.BackupManagerPro.daemon.plist
             [not loaded] com.micromat.TechToolProDaemon.plist
             [not loaded] com.microsoft.office.licensing.helper.plist
             [not loaded] com.orbicule.witnessd.plist
             [not loaded] com.sierrawireless.SwitchTool.plist
             [not loaded] com.stclairsoft.AppTamerAgent.plist
             [not loaded] org.macosforge.xquartz.privileged_startx.plist
             [not loaded]          pcloudd.plist
Launch Agents:
                 [loaded] com.divx.dms.agent.plist
                 [loaded] com.divx.update.agent.plist
                 [loaded] com.epson.epw.agent.plist
                 [loaded] com.lacie.raidmonitor.daemon.plist
                 [loaded] com.lacie.safemanager.daemon.plist
                 [loaded] com.micromat.TechToolProAgent.plist
                 [loaded] com.orbicule.WitnessUserAgent.plist
                 [loaded] org.macosforge.xquartz.startx.plist
User Launch Agents:
             [not loaded]          .DS_Store
                 [loaded] com.adobe.AAM.Updater-1.0.plist
                 [loaded] com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist
                 [loaded] com.digitalrebellion.SoftwareUpdateAutoCheck.plist
                 [loaded] com.divx.agent.postinstall.plist
                 [loaded] com.google.keystone.agent.plist
                 [loaded] com.propaganda.dejavu.dvmonitor.plist
                 [loaded] com.valvesoftware.steamclean.plist
                 [loaded] com.zeobit.MacKeeper.Helper.plist
User Login Items:
          iTunesHelper
          Synergy
          TomTomHOMERunner
          Dropbox
3rd Party Preference Panes:
          Déjà Vu
          Flash Player
          Flip4Mac WMV
          GR-55
          Paragon NTFS for Mac ® OS X
          Perian
          Printopia
          TechTool Protection
          Witness

After upgrading to OS 10.8, my Mac App Store is not working. It says: Cannot Connect To The App Store

After upgrading to OS 10.8, my Mac App Store is not working. It says: Cannot Connect To The App Store. Kindly Help

Also having that problem - I checked and I am connected to internet (can access other websites or other pages in Apple's website), can login from Snow Leopard (10.6.8) with Mac App Store there, but if I use the (external) drive with ML to start up, no go.
I can get to the "Featured"/initial MAS page, and tried going to the login from there, but same problem as Mitoshacer.
In my case, MacBook Pro (2.66GHz, 8GB RAM, 500GB external with ML - vs. 320GB internal drive with 10.6.8), March/April 2009 model. Have done searches for the problem online, but nothing shows up (except some for older OS X versions).

What do I do if the Mac App Store won't except my code for the OS X Mountain Lion code?

What do I do if the Mac App Store won't except my code for the OS X Mountain Lion code?

The Apple Support Communities are an international user to user technical support forum. As a man from Mexico my first language is Spanish. I do not speak English, however I do write in English with the aid of the Mac OS X spelling and grammar checks. I also live in a culture perhaps very very different from your own. When offering advice in the ASC, my comments are not meant to be anything more than helpful and certainly not to be taken as insults.
Contact the folks that sent you the code or AppleCare for assistance.

Mac App Store doesn't work.

Some of the apps that came with the computer, including Mac App Store and Calendar, has problems while launching and they quit themselves very soon after.
I cannot update software because as I said, the Mac App Store does not work.
Here is a part of the error report it gives when I open Calendar.:
Exception Type: EXC_BREAKPOINT (SIGTRAP)
Exception Codes: 0x0000000000000002, 0x0000000000000000
Application Specific Information:
dyld: launch, loading dependent libraries
Dyld Error Message:
Symbol not found: _OBJC_CLASS_$_CalUICalendarInfoViewController
Referenced from: /Applications/Calendar.app/Contents/MacOS/Calendar
Expected in: /System/Library/PrivateFrameworks/CalendarUI.framework/Versions/A/CalendarUI
in /Applications/Calendar.app/Contents/MacOS/Calendar
It gives the same error on the app store as well.
Please help me if you can. Thank you.

Welcome to the Apple Support Communities
Download > http://support.apple.com/kb/DL1581 If it doesn't work, press Command and R keys on boot and reinstall Mountain Lion

HT5622 My App Store won't work, I would search something on the app stores search bar but doesn't do anything

My App Store won't work, Help!

Hello Arturo138
Check out the first article to troubleshoot the internet connection that you have for your iPhone. If not check out the second article for troubleshooting access not only to the iTunes Store, but the App Store as well.
iOS: Troubleshooting Wi-Fi networks and connections
http://support.apple.com/kb/ts1398
Can't connect to the iTunes Store
http://support.apple.com/kb/ts1368
Regards,
-Norm G.

When powering off my iPod touch, any application (facebook, viber etc)installed using App Store won't work again

When powering off my iPod touch, any application (facebook, viber etc)installed using App Store won't work again
How to solve this issue?

Try a hard reset first. Press and hold both the Sleep/Wake and Home buttons together long enough for the Apple logo to appear.
If still no luck, try downloading and installing a new app from the App Store. Doing so has cleared the issue up for several users.
B-rock

IOS app store won't work

My IOS app store won't work. I just restored it times. first time with a back up. and the second time without the back up and as a new phone. And it still doesn't work. IOS 7.0.4 iPhone 4s.

are you connected to the internet?

Mac app store won't launch

Mac App store just stopped working!
No cache to delete!
Help

I also have the same problem. TextEdit and Software update does not work.
Tried restarting 3 times. Repaired Disk Permissions. Nothing.
Going to try in Safe boot mode and see what happens.

Mac App Store won't allow re-downloading of deleted apps

I am experiencing very glitchy behaviour with the Mac App Store. The store can't tell when individual apps are deleted, and therefore won't allow re-download. This has been going on for a while - when I click on the Purchases tab all Apps are still listed as Installed and the button is greyed out - I can't click to re-download. At the same time, an app that I previously did download and later removed called Cobook won't delete from the computer - after a few minutes to an hour it will re-appear in my Applications folder.
I have done a clean re-install of Mountain Lion trying to fix this problem, however the same problem exists even after a re-install - Apps that had been deleted prior to the clean install are still greyed out in the Purchases tab, and can't be re-downloaded. The only way that Apps can be re-installed is to use Time Machine backup. I am concerned that this means that updates also aren't working, since the App Store doesn't seem to know what Apps are on my computer and which ones aren't.
Yes I am using the correct Apple ID assocaited with the purchases. My purchase history shows up just fine in the Purchases tab, its just that they are stuck showing that they are currently installed, even the ones that aren't.
Mountain Lion 10.8.2, 21.5" iMac (mid-2011).

The problem is possibly worse than I expected. Since the clean re-install, now any App purchased and downloaded via App Store won't appear in the Purchases tab. So in other words, although the download seems to work correctly, and the app works, the App Store seems to lose all track of it. Which is a problem for paid apps.

Mac App Store won't work

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