Mac OS sierra app is damaged

I'm in the same boat. I even tried using an installer I used to install Sierra on the two other Macs I own and it gives me the same problem. I don't think there is really an issue with the file that was downloaded. There is something on the particular computer that is causing the issue. I wish I knew what that something is.

My 2012 MacBook Air and 2011 iMac are both having this issue. On a possibly related note, neither will mount an external cd drive since El Capitan (Tried both Apple USB Super Drive and LG SuperMulti Blade on both) even though an inserted disc shows up in Disk Utility as "Uninitalized" (Yes, the genius programmers that ruined Disk Utility also can't spell).

Tried both methods here: http://lifehacker.com/how-to-make-a-bootable-macos-sierra-usb-flash-drive-178685 3248 . Install Disk Creator couldn't unmount the USB drive and Terminal said it wasn't a valid installer file.

First you spend a lot of money, now a lot of time. It`s a bit cynical.

I don`t have a solution, I have a machine, 2015 iMac, they sell and they put on it SIPs and so many paranoids layers of precaution and protection, and I think they should know, after so many betas and tests, what might be going wrong with this upgrade. And this doesn`t seem an exotic issue, my guess is that more will come out with the very same complains we have here. As it seems Apple has change something in the way this OS upgrade works. I wish they had levelled the work with the publicity they made.

This is what I found on my Installer log after the last attempt.

„Sep 22 17:13:41 xxx-iMac osinstallersetupd[847]: Could not find package ref in any source for: com.apple.pkg.BaseSystemResources

Sep 22 17:13:41 xxx-iMac osinstallersetupd[847]: Could not find package ref in any source for: com.apple.pkg.Essentials

Sep 22 17:13:41 xxx-iMac osinstallersetupd[847]: Could not find package ref in any source for: com.apple.pkg.OSInstall”

I don`t have any clue, and the only solution I see now to have Sierra installed is to proceed to a clean install and try to put things back from the Time Machine. Earlier I did a very smooth install on my wife`s MB Air, which make me reconsider some of my previous affirmations - it may be something related to my machine only, or my apple account, or who knows what.

Onyx maintenance. For me it worked, eventualy. As simple as that. 😕 Installer run as it should, the installation process lasted as announced.

So... no need to take anything out from the installer package.

Well... Maintenance is a tab/ panel (you name it) in Onyx. You have there repair permissions (they say El Capitan doesn't need this anymore, but Onyx for El Capitan still has it so I run it), and rebuild indexes.

You know, macox is not an open source project so before trying to „hack” the installer, it is advisable to prepare/clean the machine so the new OS lays properly over the old one. I forgot this simple fact, my other day furry seems now ridiculous. Apple may have its sins, questionable sales polices/ choices or slappy jobs... or whatever (for instance bad firmware for newer Airports, or building expensive machines with strong processors and weak storage devices), but at least in this error on installer issue it was not company`s fault. A common maintenance procedure is required before launching the OS upgrade.

I get the same damaged message, I also don't get the option to download again and it doesn't show up in purchases. I have tried the "helpful" answer which allows me to go to install which says five minutes waiting but I also get the software cannot download to "null" and nothing happens. Completely stuck, I can't download again and I can't install what I've got.

Actually, I stand corrected. I got the installer to open, but then was told it couldn't install. I have a 13" 2014 MacBook Pro, so it's not like I fail the requirements. Gotta go, so I'll attempt this later.

Thanks, that worked for me. I don't understand what a Safari 10 update has to do with being able to update the OS, because that was the only update there. I specifically hadn't updated it because I had already done my final El Capitan clone and didn't want to change anything before the Sierra update.

It seems that the update contained more than Safari. Shouldn't a update to Safari not require a restart let alone need time to install. Something is fishy and apple didn't post in the update "Fix for macOS Sierra install bug". Are they allowed to do that without telling the user?

Paclypse71 wrote:

Thanks, that worked for me. I don't understand what a Safari 10 update has to do with being able to update the OS,

Obviously, this was not common, the vast majority have not had problems, like me

Hi,

My Mac is MacBook Pro (15-inch, Mid 2012), I havent recieved any Safari updates in the app store. And the problem of damaged install still exist even after re-downloading many times. Is there any way to get the missing safari update from the appstore to correct this issue.

Thanks,

vinay.

AGAIN. I encountered the error on install issue and I solved it running the usual maintenance scripts (rebuilding indexes/ launch services, cleaning system cache, repairing permissions - Onyx is an application (FREE) that gather all these routines under a single umbrella. Well... I was there, caught in an irritating loop of downloading, trying to install, deleting, rebooting on and on for several hours. The frustration brought me here in this forum (via Google), raving, spilling philosophically my frustration - it was for the first time in a long while when I hit such a nasty wall in my relation with an Apple machine. I cannot tell you who the culprit is, user`s machine or the installer - and I don`t have neither time, nor expertise to bother with this issue. But what I can do (for the vast minority of people who find themselves in the same pit of frustration as I was) is to share the solution that worked for me: MAINTENANCE, REBOOT, INSTALL (flawlessly.. phew!!!), ENJOY SIERRA.

Good luck!