HT1338 The Mac App Store shows an update available for iMovie but when I click "update" it gives me this message, "The product distribution file could not be verified. It may be damaged or was not signed." What can I do to update this program?

The Mac App Store shows an update available for iMovie but when I click "update" it gives me this message, "The product distribution file could not be verified. It may be damaged or was not signed." What can I do to update this program?

http://www.apple.com/support/mac/app-store/contact.html?form=account

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HT4463 When clicking 'buy' for Mountain Lion in the App store I get the message "product distribution file could not be verified, it may be damaged or was not signed' Anybody know why I get this message. Thanks

When clicking 'buy' for Mountain Lion in the App store I get the message "product distribution file could not be verified, it may be damaged or was not signed' Anybody know why I get this message. Thanks

Make sure your Mac qualifies for Mountain Lion > Upgrade your Mac to OS X Mountain Lion.
If you have anti virus software installed, disable that before downloading apps.
Turn off the Firewall in System Preferences > Security (or Security & Privacy) > Firewall
Try deleting the cache, cookies, and preference files (plist) associated with the App Store.
Quit the App Store if it's open.
Open the Finder. From the Finder menu bar click Go > Go to Folder
Type this exactly as you see it here:
~/Library/Caches/com.apple.appstore/Cache.db
Click Go
Move the Cache.db file to the Trash.
Now here:
~/Library/Preferences
Click Go
Move these files from the Preferences folder to the Trash.
com.apple.appstore.plist
com.apple.storeagent.pllist
Now here:
~/Library/Cookies
Click Go
Move the com.apple.appstore.plist file from the Cookies folder to the Trash.
Empty the Trash, try the App Store.

I keep getting a update notification for iMovie but when i click update it prompts a different apple id

i keep getting a update notification for iMovie but when i click update it prompts a different apple id and it dose not allow me to change the apple id so I'm left with the old iMovie and no way to update ?? need help

Deleting and redownloading will not fix it unless it shows as part of your purchases, which it likely doesn't.
The resolution will depend on how you got the app in the first place. Check my response here Lost iWorks apps after Yosemite clean install different app, but same thing.
If your Mac came with the dvd version, you never tied them to your Apple ID (assuming eligibility to do so), sometimes signing out/in from the App Store fixes it, allowing you to accept under purchases (see my other post). Otherwise, you'll need to contact Apple.

Product distribution file could not be verified. it may be damaged or was not signed.??

whenever i try downloading anything on the appstore that's what it says.. i don't know what to do... i'm no expert on computer and i can only understand basic instructions. english is not my first language.. can anyone please help me??
all the other similar threads about this that i saw were from 2011 and i did not find them very helpful that's why i am asking this.. please help

Several causes for this problem have been reported. Please take each of the following steps that you haven't already tried. Stop when it's resolved.
Step 1
If possible, test on another network, such as a public hotspot (if the computer is portable) or the hotspot created by a mobile device. A network gateway that blocks some traffic, most likely on a company or university network, could be causing the error.
Step 2
Back up all data.
From the menu bar, select
 ▹ System Preferences... ▹ Network
If the preference pane is locked, click the lock icon in the lower left corner and enter your password to unlock it. Then click the Advanced button and select the Proxies tab. If any proxy options are selected, make a note of them and then deselect them. You don’t need to change the bypass or FTP settings. Click OK and then Apply. Test. The result may be that you can't connect to any web server. Restore the previous settings if that happens.
Step 3
Rebuild the Spotlight index. If you try to search now from the magnifying-glass icon in the top right corner of the display, there will be an indication that indexing is in progress.
Step 4
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 Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start 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 login 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 the test.

File and product distribution could not be verified. it may be damaged or was not signed. ?

I get this as a pop up when I try to purchase and install "Pages" and "Numbers" on my brothers iMac. Thoughts as to what I might be doing wrong?

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, 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, and some things won’t work at all, including sound output and Wi-Fi on certain iMacs. 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 (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

HT201343 The Apple TV icon shows up on my macbook pro, but when I click it, it won't connect.

I just bought Apple TV today. The Apple TV icon shows up on my Macbook, but when I click 'Apple TV,' it turns blue for a few seconds, and then a 'Could not connect to Apple TV' pop-up comes up a few seconds later. I've tried restarting my apple tv, computer, router, TV, and have made sure all software is up to date. 'Apple TV' is turned on in the settings and my firewall is off. Everything else seems to work on the Apple TV. I updated my macbook to Mavericks last night. Why won't it work?

Hi rhersco,
If you are having issues with Airplay Mirroring on your new Apple TV, you may find the following article helpful:
iTunes: Troubleshooting AirPlay and AirPlay Mirroring
http://support.apple.com/kb/ts5209
Regards,
- Brenden

My download speed in the Mac App store is horribly slow going at 600kb/s when my internet speed is 60Mb/s fibre optic broadband, why? Every other application has expected (fast) download speeds, so i doubt its my ISP or security settings.

As above, I have also tried clearing caches and changing settings in keychain. I can normally download a 5GB file in roughly 30 in any other application howver, in the App store it takes 4 hours. Very frustrating, any suggestions are very welcome.

Note: using enthernet or Wifi makes no difference in speed.

HT201364 when i tried to update OS X Mavericks, its says The product distribution file could br verified. it may be damaged or was not signed... please help me..

^^
<Email Edited by Host>

Somehow, the download is getting corrupted. First, try repairing your hard drive. Then make sure that you have disabled or uninstalled any anti-virus or internet filtering software. Also, verify that your computer's clock is set properly.
After doing all this, try downloading again. It may be worthwhile to download on a completely different network, especially since that will be the next step if re-downloading on your current network doesn't work.
PS - note that folks won't send you an e-mail directly from these forums, and posting your e-mail address on a public forum is generally not a good idea.

I deleted an app downloaded from the Mac App Store, Mac App Store is showing an update for deleted app.

I downloaded Blackmagic Speed Disk from the Mac App store last year. Its not a pirated copy or anything. I deleted the app cause I never used it. After I deleted the app the Mac App Store shows an available update for the deleted app. When I click update, it just re-downloads the app. Cant figure out how to completly get rid of it. I uninstalled the app and then used easy file finder to delete the app's files completely. How do I get rid of the annoying Update??? Thanks

Hide the app from your Purchases list. Sign into your account (Store menu). Go to Purchases pane, right click on the app in question, Hide the app.

Cannot download Maverick. Message I receive is The product distribution file could not be verified. It may be damaged or was not signed. Can anyone help?

Cannot download Maverick. Get message that production distribution file could not be verified. It may be damageed or was not signed. Can anyone help?

Mavericks installer can’t be verified
Mavericks Installer can’t be verified (2)

Mountain Lion will not download says The product distribution file could not be verified. It may be damaged or was not signed." Help....

Mountain Lion cannot download, need help. Says "The product distribution file could not be identified it may be damaged or was not signed". What do I do?????

If you have Intego VirusBarrier X6 installed
1. Open /Applications/VirusBarrier X6.
2. Click on the "Surf" button.
3. Click on the "Ad Banner Filter" tab.
4. Click "OFF" next to "Banner advertisement filter".
5. Start the computer in Safe Boot, then restart the computer into normal mode.
If don't not have Intego Virus Barrier installed
1. Verify that the date and time is correct on the computer.
2. Safe Boot once, then restart normally, then try downloading again.
3. Try with a different user account if the issue persists
If the issue persists
Install Lion onto an empty partition (internal or external).
Note: You can Use Disk Utility to live partition the internal drive and create a second partition large enough to install Lion.
Start from the clean installation of Lion.
Download Mountain Lion from the Mac App Store. Note that the original startup disk can be set as the destination for Mountain Lion during the installation process.

Is there a way to use Automator or Applescript to launch the Mac App Store and download updates automatically?

As the subject indicates, I'm wondering if anyone knows a way to use AppleScript or Automator to launch the Mac App Store and download any available updates on a set schedule.

I would advise against this. Updates sometimes reduce functionality or break programs. I would never get an update with working software unless there is a specific problem you are trying to solve.
I have read many desperate posts from people trying to go back to earlier versions for various reasons. This is easy to do with disk-based software, but with downloaded software, going backward can be more difficult.

Why won't the Mac App Store let me update iMovie to version 9.0.6?

I just received my new MacBook Pro with Retina display today. I ran through the setup process including Migration Assistant for everything. (from 2011 iMac) I received a notifiction from the Mac App Store this evening stating that an update was available for iMovie. When I clicked on the update button, a message appeared stating that I had to sign in with the account that I used to purchase the app in order to update it. This made no sense to me, considering that the app came pre-installed on the machine. I was thinking it might have something to do with Migration Assistant but when I checked iMovie on my iMac it had already been updated to the most current version. (9.0.6) I also checked my account information. It was correct. I also tried signing in with another Apple ID I have. None of this worked.
Any ideas?
Thanks!

Whatever you do DO NOT UPGRADE. Check out the reviews on the App Store and the Web for this version. The App will not let you finalize your project (render it to 1080p) or share it in any format you ask it to. Effectively all you end up with is the ability to see it on your MacBook and an error message saying "Sharing requires more memory to be available" I have an i7 iMac with 16 GB and that is not enough?
I replaced my ageing MacBook Pro about two months ago before the retina display came in. Jealous or what?

About The Mac App Store?

About The Mac App Store? is it doing well in Business, like do a lot of people go on it & buy & download Free Apps? cause I Worry what if it will be like if we had no Mac App Store like we used to? then I Would never be able to really find anything good if Apple did not come up with Something Papular to find Games Apps & other apps, I Go on Mac App Store & i look at Reviews but it is not up to today's date, very few of them have up to today's dat Reviews & Some don't even have any Reviews & some only have 1 Review in there that is up to date, it looks like Apple Mac App Store is Dead? or there just not Accepting Reviews?, so is The Mac App Store doing well? or is it ready to go out of Business? I Love The Mac App Store, I do buy things on there, last thing I Bought was FlatOut 2 & I Left a Review, if there was No Mac App Store then it will be Hard to find App's, they made The Mac App Store to find Apps more easy if we go back the other way then it would be hard to find Apps & that would suck, like it used to, we had to go through a Whole List to find something, that was the old way around I do have a Suggestion, I think they should make the Mac App Store for PC Microsoft Computers & name it The PC App Store even though i'll never go back to Microsoft PC Computers, i'm sticking with Apple iMac Computers from now on, so what are your Opinion on The Mac App Store? I Never have any trouble at all on My 2009 24inch Apple iMac computer, all The Apps that I Buy on The Mac App Store work Excellent on My Machine & The Mac App Store works Excellent as well, I buy a lot of Car Racing Games on The Mac App Store & Some other Apps I Buy on The Mac App Store are not all Up To Date, I check MacUpdate they say a New version is Available but The Mac App Store has the low version on some Apps, I see there falling behind on some things, so what's your opinion on The Mac App Store? & they don't Update there Twitter page often? but I see there still putting New Apps on The Mac App Store every day, I Hope things don't go back the old way again? just wondering what will happen in the future for The Mac App Store?

If you're a developer with proper access, you can read this document: http://developer.apple.com/devcenter/mac/checklist/
Title: "Get your mac apps ready for the mac app store"
It covers all that's needed to modify in your application's package in order to submit it and have it work with the Mac App Store. Apple's new framework (similar to an API) for the app store is the "AppKit" framework.

Aperture 3 in the Mac App Store help!!

To be able to purchase this app in the Mac App Store, must you have Aperture 1 or 2? Is it possible to get Aperture 3 as the first Aperture software I've purchased? I would like to know so that I do not waste my money on something that will not work.

concerning the license issues please read following article:
http://aperture.maccreate.com/2011/01/07/dumb-forum-posts-otd-aperture-license-f orbids-commercial-use/
You will find out that the new conditions are even in favor for you and give you more legal possibilities of using Aperture than the boxed version does.
To the question why Apple does give you a huge price drop you can only speculate. Some thoughts you can find here:
http://www.apertureexpert.com/tips/2011/1/9/what-does-this-120-price-drop-mean-1 .html
http://www.apertureexpert.com/tips/2011/1/12/a-clever-idea-for-the-future-of-ape rture.html
Summa summarum you can rest assured that the new price cut is something great for you to enjoy and Aperture seems to have a bright future.

HT1338 The Mac App Store shows an update available for iMovie but when I click "update" it gives me this message, "The product distribution file could not be verified. It may be damaged or was not signed." What can I do to update this program?

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