How can I update to OSX Yosemite when product distribution file can not be verified?

When I try to upgrade to OSX Yosemite I receive the following error message:
We could not complete your purchase.
The product distribution file could not be verified.  It may be damaged or was unsigned.
Can someone help me with this issue?

When I try to upgrade to OSX Yosemite I receive the following error message:
We could not complete your purchase.
The product distribution file could not be verified.  It may be damaged or was unsigned.
Can someone help me with this issue?

Similar Messages

  • I can't update IPhoto, it says "the product distribution file could not be verified it must be damaged or signed in" I bought it on iTunes and have 8,000 photos already. how can I update and correct this??

    I can't update IPhoto, it says "the product distribution file could not be verified it must be damaged or signed in" I bought it on iTunes and have 8,000 photos already. how can I update and correct this??

    You might try resetting the App Store application and clear the cookies via this menu:
    as described in this website: Make use of the Mac App Store debug menu | MacFixIt - CNET Reviews
    OT

  • Updating compressor fails with "The product distribution file could not be verified. It may be damaged or was not signed."

    The message appears in the App Store page. App Store support suggested removing Compressor and reinstalling it. Trying to reinstall produced the same message: "The product distribution file could not be verified. It may be damaged or was not signed." And compressor disaappeared from my "purchased" list. Trying the purchase route, i get the same message. The App Store support guy said to try here since he and his superviosr had no idea what to do.

    Posting this triggered a suggestion in the "More like this" that solved the problem.  In
    https://discussions.apple.com/message/16063398#16063398%2316063398 the third response gives effective guidance for fixing the problem.

  • 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

  • When I try to upgrade to Mountain Lion OS, after I select the "Buy App" option I get this "We could not complete your purchase. The product distribution file could not be verified. It may be damaged or was not signed" message, how can I upgrade?

    When I try to upgrade to Mountain Lion OS form Lion OS, after I select the "Buy App" option I get this "We could not complete your purchase. The product distribution file could not be verified. It may be damaged or was not signed" message, what is causing this problem, how can I find a solution, is someone else having this problem?

    The only thing that worked for me was to boot in safe mode.
    Power down.  Then press power button and hold 'shift' key until grey screen with progress bar appears... Once booted and logged in just open safari and browse to applestore. 
    No trouble at all once I did this.
    Reminder: create full backup before you upgrade OS
    Hope it helps.

  • HT201364 trying to download os x mavericks and i get an error saying "The product distribution file could not be verified. It may be damaged or was not signed." how do i fix this so i can update my new macbook pro?

    "The product distribution file could not be verified. It may be damaged or was not signed."
    please help! i want to update my computer!!!

    "Update your new MacBook Pro"?
    Well, if your MacBook Pro is new, it already has Mavericks installed and there is nothing to update.
    Go to the Menu Bar, and click the Apple logo.  Then click "About This Mac."  Does it show OS X 10.9 or 10.9.1?
    If so you are already running Mavericks.

  • I can't download an app or update ,It says ( the product distribution file could not be verified) in App Store ,and in iTunes says An unknown error occurred (-50) ?

    Hi:all
    I can't download an app or update ,It says ( the product distribution file could not be verified) in App Store
    ,and in iTunes says An unknown error occurred (-50) ?
    Help Please.

    See this link from another similar question.  It may need patience to resolve.  I think Thomas Reed's suggestion is best place to start.
    App Store rejects buy of Mountain Lion: Apple Support Communities

  • HT4414 When I try to purchase Mountain Lion i get an error message:  "We could not complete your purchase.  The product distribution file could not be verified. It may be damaged or was not signed."  I can purchase other apps, why not Mountain Lion?

    When I try to purchase Mountain Lion i get an error message:  "We could not complete your purchase.  The product distribution file could not be verified. It may be damaged or was not signed."
    I can purchase other apps, why not Mountain Lion.   I get the same message on my wife's IMAC.

    The only thing that worked for me was to boot in safe mode.
    Power down.  Then press power button and hold 'shift' key until grey screen with progress bar appears... Once booted and logged in just open safari and browse to applestore. 
    No trouble at all once I did this.
    Hope it helps.

  • HT201364 I keep getting the message "The product distribution file could not be verified. It may be damaged or was not signed." Does anyone know what I can do to correct this so I can download OSX?

    I keep getting the message "The product distribution file could not be verified. It may be damaged or was not signed." Does anyone know what I can do to correct this so I can download OSX?
    I have a MacBook Pro with all the necessary requirements.

    Here are a few things to try:
    Restart your Modem and Router.
    Reset iTunes Store Cache (iTunes Preferences, Advanced tabl)
    Delete the App Store plists (close App Store first):
    ~/Library/Preferences/com.apple.appstore.plist
    ~/Library/Preferences/com.apple.storeagent.plist
    To get to these,iIf you still have your user Library hidden, hold down the Option key and select Library from the Go menu in Finder. Otherwise, just go into your home folder, then Library, and then Preferences.

  • HT201364 Can someone help out. I'm getting this message when i try to download. The product distribution file could not be verified. It may be damaged or was not signed.

    Can someone help out. I'm getting this message when i try to download. The product distribution file could not be verified. It may be damaged or was not signed.

    See this link from another similar question.  It may need patience to resolve.  I think Thomas Reed's suggestion is best place to start.
    App Store rejects buy of Mountain Lion: Apple Support Communities

  • HT201364 The product distribution file could not be verified. It may be damaged or was not signed. I get this message when I try to download mavericks. can anybody help?

    I have a 2011 macbook pro 13 inch. when I try to download mavericks I get a message saying the product distribution file could not be verified. It may be damaged or missing. Please help.

    Mavericks installer can’t be verified

  • I tried to download the latest OSX Mountain Lion and got this notice - "We could not complete your purchase.  The product distribution file could not be verified.  It may be damaged or was not signed. "  What does this mean and why can't I download it?

    I tried to download the latest OSX for my iMac - Mountain Lion.
    This is the message that I received:
    "We could not complete your purchase.  The product distribution file could not be verified.  It may be damaged or was not signed."
    What does this mean?

    The only thing that worked for me was to boot in safe mode.
    Power down.  Then press power button and hold 'shift' key until grey screen with progress bar appears... Once booted and logged in just open safari and browse to applestore. 
    No trouble at all once I did this.
    Reminder: create full backup before you upgrade OS
    Hope it helps.

  • Whenever I try to update my iPhoto program I get this error message "The product distribution file could not be verified. It may be damaged or was not signed."

    Whenever I try to update my iPhoto program I get this error message "The product distribution file could not be verified. It may be damaged or was not signed."

    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, or by a peripheral device. 
    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, 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 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.

  • When ever i'm trying to install an app from the app store i'm getting the following error "We could not complete your purchase - The product distribution file could not be verified. It may be damaged or was not signed", plz help me to rectify this .

    when ever i'm tring to install an app from the app store i'm getting the following error.
    "We could not complete your purchase - The product distribution file could not be verified. It may be damaged or was not signed".
    someone plz help me to overcome this.

    Installing the appropriate combo update may help...
    If you are running v10..7 Lion, install the OS X Lion Update 10.7.4 (Client Combo)
    For 10.6 Snow Leopard >  Mac OS X 10.6.8 Update Combo
    Then restart your Mac. Try the App Store.
    If that doesn't help, try the following..
    Quit the App Store if it's open.
    Open the Finder. From the Finder menu bar top of your screen click Go > Go to Folder
    Type this exactly as you see it here:
    /Library/Preferences/SystemConfiguration
    Click Go
    Move the NetworkInterfaces.plist file from the SystemConfiguration folder to the Trash.
    Relaunch the App Store and try downloading Mountain Lion.
    You may also need to disable anti virus software and turn off the Firewall in System Preferences > Security (or Security & Privacy) > Firewall

  • I am using Mac OS X 10.7.5 as of now and when I am trying to upgrade to Mavericks, it is throwing error "The product distribution file could not be verified. It may be damaged or not signed".

    I am using Mac OS X 10.7.5 as of now and when I am trying to upgrade to Mavericks, the App Store is throwing error "The product distribution file could not be verified. It may be damaged or not signed".
    Is there anything I should do differently? Is anyone else facing the same issue?
    Kindly help.

    Please read this whole message before doing anything.
    This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
    Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac. 
    These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing. 
    Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects. 
    Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then copy it. The headings “Step 1” and so on are not part of the commands. 
    Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply. 
    Launch the Terminal 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 Terminal in the icon grid. 
    When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” and press return. You should then get a new line ending in a dollar sign. 
    Step 1 
    Triple-click anywhere in the line of text below on this page to select it:
    kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}' | open -ef 
    Copy the selected text to the Clipboard by pressing the key combination command-C. Then click anywhere in the Terminal window and paste (command-V). I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key after pasting. A TextEdit window will open with the output of the command. If the command produced no output, the window will be empty. Post the contents of the TextEdit window (not the Terminal window), if any — the text, please, not a screenshot. You can then close the TextEdit window. The title of the window doesn't matter, and you don't need to post that. No typing is involved in this step.
    Step 2 
    Repeat with this line:
    { sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix\.cron)|org\.(amav|apac|cups|isc|ntp|postf|x)/{print $3}'; echo; sudo defaults read com.apple.loginwindow LoginHook; echo; sudo crontab -l; } 2> /dev/null | open -ef 
    This time you'll be prompted for your login password, which you do have to type. Nothing will be displayed when you type it. Type it carefully and then press return. You may get a one-time warning to be careful. Heed that warning, but don't post it. If you see a message that your username "is not in the sudoers file," then you're not logged in as an administrator. 
    Note: If you don’t have a login password, you’ll need to set one before taking this step. If that’s not possible, skip to the next step. 
    Step 3
    { launchctl list | sed 1d | awk '!/0x|com\.apple|org\.(x|openbsd)/{print $3}'; echo; crontab -l 2> /dev/null; } | open -ef 
    Step 4
    ls -A /e*/{cr,la,mach}* {,/}Lib*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts .la* 2> /dev/null | open -ef  
    Important: If you formerly synchronized with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting. 
    Step 5
    osascript -e 'tell application "System Events" to get name of login items' | open -ef 
    Remember, steps 1-5 are all copy-and-paste — no typing, except your password. Also remember to post the output. 
    You can then quit Terminal.

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