Lion Install Failing: software could not be verified

So I download Lion, start the installer and I get the following error message pop-up:
The software could not be verified. It may have been corrupted or tampered with during downloading.
It took me nearly 7 hours to download this thing so downloading again is not an option. So is there any way I can fix this?
Here is the error that's being logged in the console when I run the installer:
7/21/11 10:56:51 AM Install Mac OS X Lion[9980] Error loading /Applications/Install Mac OS X Lion.app/Contents/PlugIns/IACoreStorage.IABundle/Contents/MacOS/IACoreStorage: dlopen(/Applications/Install Mac OS X Lion.app/Contents/PlugIns/IACoreStorage.IABundle/Contents/MacOS/IACoreStorage, 265): Library not loaded: /usr/lib/libcsfde.dylib
Referenced from: /Applications/Install Mac OS X Lion.app/Contents/PlugIns/IACoreStorage.IABundle/Contents/MacOS/IACoreStorage
Reason: image not found
Of course, /usr/lib/libcsfde.dylib doesn't exist anywhere on my 10.6.8 MacOS installation.
Anyone else run into this problem?

Thanks for the reply. In another posting, the md5 checksum of a fully downloaded file should be:
b5d3753c62bfb69866e94dca9336a44a
This is for the installESD.dmg file inside the installer (right-click on "Install Mac Os X Lion" which will be in your /Applications folder after the download (but before the install - will get deleted after the install is complete); select 'Show Package Contents" from the menu; go into "Contents"; go into "SharedSupport"; you'll see the InstallESD.dmg disk image here).
To get the checksum, from Terminal, navigate to the directory (see paragraph above) and run:
md5 InstallESD.dmg
So I wasted my entire morning trying to figure out why this wasn't working. How is it that Apple can't inform you that the download didn't complete successfully?!!? Major $%^& up.

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Cannot install Mac OS X lion because when installing I recieved the following message:The software could not be verified. It may have been corrupted or tampered with during downloading" What can I do

I have not been able to install Max OS X Lion because in the process the following message was displayed:
"THE SOFTWARE COULD NOT BE VERIFIED. IT MAY HAVE BEEN CORRUPTED OR TAMPERED WITH DURING DOWNLOADING"
How can I solve this?
Note: I trashed the download and tried re-downloading but this effort was unsuccessful.

Since writing my original post I decided to send the following message to Mac App Store Customer Support:
"I have had to download this file from the app store at least ten (10) times. I try to install the file but I keep getting the message "The software could not be verified. It may have been corrupted or tampered with during downloading."
I then delete the same file and try another attempt at a different time of day. Most recently following Apple Support's advice I contacted my ISP to clear the file cache but they could only clear my browser cache. I have deleted my com.apple.appstore. folder which contains app store cache, also com.apple.appstore.plist and tried again to no avail. I have wasted hours doing all this and I now want my money back please. You can keep this software update until you release it on disk like Snow Leopard which installed like a dream. I'm very disappointed with Apple that they expect the purchaser to do all the work trying to diagnose their software installation issue. Nice idea but poorly executed has been my experience."
I received this message which has confirmed my refund request:
Julia here from the iTunes Store. I understand that you received an error message and have been unable to install OS X Lion. I know how eager you must be to have this resolved, and I will be happy to help in any way that I can.
Please accept my sincere apologies for the frustration this download has caused. Since you were unable to enjoy this purchase, I have gone ahead and issued a refund. In five to seven business days, a credit of £20.99 should be posted to the credit card that appears on the receipt for that purchase.
If you have any other questions or concerns regarding this issue, please reply so I can assist you further. Thank you for being an iTunes Store customer.
Sincerely,
Julia
iTunes Store/Mac App Store Customer Support
Perhaps I'll wait for a disk to become available or see if a download to a pen drive at an Apple store is possible.

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Rebooted in Safe Mode.
Went to Disk Utility -> Repair Disk Permissions
Downloaded ML at midnight (and the download was significantly faster!)
Rebooted in Normal Mode.
Ran the ML Installer.

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Change the permissions on the download in /Applications
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I encountered the same error "…can't be verified…" error on my 2010 MBP too. Tried six times and finally I could get it installed. Here's what I did:
Went to "Users & Groups" in System Preferences, checked that the Apple ID specified for the current user is the same Apple ID I used in the download purchase of ML from the App Store.
Rebooted in Safe Mode.
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Downloaded ML at midnight (and the download was significantly faster!)
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Went to "Users & Groups" in System Preferences, checked that the Apple ID specified for the current user is the same Apple ID I used in the download purchase of ML from the App Store.
Rebooted in Safe Mode.
Went to Disk Utility -> Repair Disk Permissions
Downloaded ML at midnight (and the download was significantly faster!)
Rebooted in Normal Mode.
Ran the ML Installer.

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Lion install errors out with msg that software could not be verified, it may be corrupted or tampered with during download. Re-downloads produced the same error.

Tried a number of downloads of Lion and none of them would get by the error in the subject line. Help pls?

I was in your same situation with 14 downloads and 14 attempts.
You have to make sure that your Mac is booting into 64 bit mode. You can make sure of this by going into System Preferences and scrolling down to 'Software' and making sure that you are booding with 64 bit Kexts.
If not, restart while holding the 6 and 4 keys down until you see the spinning gear wheel and try installng again.
BUT, what I also did was to go into Applications, click on the Lion installer, Get Info, and give yourself custom priviliges to Read And Write.
I did this simultaneously, and I don't know what function did it, but it worked for me, with no further downloads of the installer.
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Hello,
I bought from Adobe add-on "Scrollable Text Frames" for the Muse software but I can not install it. The error message is:
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That could give me the solution quickly?
thank you

Hi
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MAC:
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I encountered the same "…can't be verified…" error on my 2010 MBP too. Tried six times and finally I could get it installed. Here's what I did:
Went to "Users & Groups" in System Preferences, checked that the Apple ID specified for the current user is the same Apple ID I used in the download purchase of ML from the App Store.
Rebooted in Safe Mode.
Went to Disk Utility -> Repair Disk Permissions
Downloaded ML at midnight (The download was significantly faster and would less likely get corrupted.)
Rebooted in Normal Mode.
Ran the ML Installer.

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Hello, I just purchased Lion OSX and upon installing it says that: The software could not be verified. It may have been corrupted or tampered with during downloading. ????????
I see that others are having the same problem...how can i fix this..? I just spent $29.99 on something that is not working. Not happy right now.
I am running an imac Duo core, 8 gigs of ram, 3.06 GHz processor.
Please tell me how to fix this...I did not tamper with it while it was downloading and there were no internet issues as far as i know.

Hi ...
Go to HD/Library/Preferences/SystemConfiguration
Move the NetworkInterfaces.plist file from the SystemConfiguration folder to the Trash.
Restart your Mac. Try the App Store.
BTW, you cannot delete an Apple ID.

Lion Install Failing: software could not be verified

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