Just see if the following links help you in resolving the issue.
If you still face issue then please provide the install.log file and the FlashPlayerInstallManager.log file. To get the log file read Where do I find the Flash Player installation log on the Macintosh? and upload the files to cloud.acrobat.com/send using the instructions How to share a document.
Let us know if you face any issues.
Thanks for answering. Actually, those were the very first places I went. I followed those instructions, but was not able to do the installation. I even tried an earlier version. No luck. I will look at the install.log and FlashPlayerInstallManager.log and send.
Interesting...following the instructions for retrieving the install.log file...nothing is added to the console.log....I mean, NOTHING. I will send the FlashPlayerInstallManager.log file as per your instructions.
Nothing is written to the install.log file because the failure is happening prior to that.
What is the name of the installer file you are using?
Are you being prompted to provide Admin credentials when installing Flash Player?
I'm using this installer downloaded from Adobe: AdobeFlashPlayer_21au_a_install.dmg
I am being prompted to provide my admin credentials, which I do.
Are there entries in two log files saved at ~/Library/Logs/Adobe_ADMLogs that correspond with the time you attempted to install Flash Player? If so, please provide those 2 log files as well.