Unable to install Adobe Flash on Mac OS X El Capitan 10.11.4

Question

My Adobe Flash was in need of an update.  When I tried to update it, it failed at 90%.  I have tried every single step indicated at Installation problems | Flash Player | Mac​ (some multiple times) so please do not advise me to try any of those options.  I have also tried restarting my computer and trying again multiple times.  I did a Google search and have found that this seems to be a common problem, yet I have not been able to find a solution.  I am using a Macbook Pro with OS X El Capitan 10.11.4.  Please advise, as right now I am unable to view anything that uses Adobe Flash.  I'd also like to add that, while I am far from being technologically inept, I am also not an IT person so a step by step guide in plain English would be greatly appreciated!  Thank you!

pndmnd · Answer

My log of my most recent installation attempt is below. You will note that at the end it instructs me to contact the software manufacturer for assistance.

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: JS: Flash Player Install: Performing volume check for /

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: JS: Flash Player Install: Volume check passed.

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: JS: Flash Player Install: Performing volume check for /Volumes/NO NAME

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: JS: Flash Player Install: Error: Non-OS Volume detected.

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: Product archive /Volumes/Flash Player/Install Adobe Flash Player.app/Contents/Resources/Adobe Flash Player.pkg trustLevel=202

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: -[IFDInstallController(Private) _buildInstallPlanReturningError:]: location = file://localhost

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: -[IFDInstallController(Private) _buildInstallPlanReturningError:]: file://localhost/Volumes/Flash%20Player/Install%20Adobe%20Flash%20Player.app/Contents/Resources/Adobe%20Flash%20Player.pkg#AdobeFlashPlayerComponent.pkg

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: Set authorization level to root for session

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: Administrator authorization granted.

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: Will use PK session

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: Using authorization level of root for IFPKInstallElement

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: Starting installation:

Oct 19 20:49:24 AMANDAs-MacBook-Pro installer[440]: Configuring volume "Macintosh HD"

Oct 19 20:49:25 AMANDAs-MacBook-Pro installer[440]: Preparing disk for local booted install.

Oct 19 20:49:25 AMANDAs-MacBook-Pro installer[440]: Free space on "Macintosh HD": 311.87 GB (311872393216 bytes).

Oct 19 20:49:25 AMANDAs-MacBook-Pro installer[440]: Create temporary directory "/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/T//Install.440KE0KGN"

Oct 19 20:49:25 AMANDAs-MacBook-Pro installer[440]: IFPKInstallElement (1 packages)

Oct 19 20:49:25 AMANDAs-MacBook-Pro installd[342]: PackageKit: Adding client PKInstallDaemonClient pid=440, uid=0 (/usr/sbin/installer)

Oct 19 20:49:25 AMANDAs-MacBook-Pro installer[440]: PackageKit: Enqueuing install with framework-specified quality of service (utility)

Oct 19 20:49:25 AMANDAs-MacBook-Pro installd[342]: PackageKit: ----- Begin install -----

Oct 19 20:49:25 AMANDAs-MacBook-Pro installd[342]: PackageKit: request=PKInstallRequest <1 packages, destination=/>

Oct 19 20:49:25 AMANDAs-MacBook-Pro installd[342]: PackageKit: packages=(

"PKLeopardPackage <file://localhost/Volumes/Flash%20Player/Install%20Adobe%20Flash%20Player.app/Contents/Resources/Adobe%20Flash%20Player.pkg#AdobeFlashPlayerComponent.pkg>"

)

Oct 19 20:49:25 AMANDAs-MacBook-Pro installd[342]: PackageKit: Extracting file://localhost/Volumes/Flash%20Player/Install%20Adobe%20Flash%20Player.app/Contents/Resources/Adobe%20Flash%20Player.pkg#AdobeFlashPlayerComponent.pkg (destination=/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/C/PKInstallSandboxManager/F903F921-E909-46F6-B5A5-0173D5DF8FC6.activeSandbox/Root, uid=0)

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: prevent user idle system sleep

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: suspending backupd

Oct 19 20:49:26 AMANDAs-MacBook-Pro install_monitor[443]: Temporarily excluding: /Applications, /Library, /System, /bin, /private, /sbin, /usr

Oct 19 20:49:26 AMANDAs-MacBook-Pro install_monitor[443]: Re-included: /Applications, /Library, /System, /bin, /private, /sbin, /usr

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: releasing backupd

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: allow user idle system sleep

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: Install Failed: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" UserInfo={NSFilePath=/private/tmp/PKInstallSandbox.XXXXXX} {

NSFilePath = "/private/tmp/PKInstallSandbox.XXXXXX";

}

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: Running idle tasks

Oct 19 20:49:26 AMANDAs-MacBook-Pro installer[440]: install:didFailWithError:Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted" UserInfo={NSFilePath=/private/tmp/PKInstallSandbox.XXXXXX}

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: Removing client PKInstallDaemonClient pid=440, uid=0 (/usr/sbin/installer)

Oct 19 20:49:26 AMANDAs-MacBook-Pro installd[342]: PackageKit: Done with sandbox removals

Oct 19 20:49:27 AMANDAs-MacBook-Pro installer[440]: Install failed: The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.

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