The Adobe System Requirements for its versions can be found in the following Adobe document
As you will see the System Requirements for 11 Mac include
- 64-bit Multicore Intel® processor.
- Mac OS X v10.6 through v10.8.
- 2-GB RAM
The Premiere Elements 11 Mac installation disc's ReadMe file also says the same thing.
Is it possible that your Mac computer does not have a 64 bit Multicore Intel processor? That might be the answer.
Just in case note....are you working with Premiere Elements 11 Editor from the Mac App Store or the Premiere Elements 11 Mac from Adobe?
We will be watching for your progress.
After lengthy discussion with Adobe tech service I downloaded (4 hours) another copy of Premiere Elements. Installed using the serial from the package I purchased. It gave me the same error message then went ahead and installed.
My mac does have a four core, 64 bit processor. 4-GB RAM.
Thanks for the follow up with the great news that Premiere Elements 11 did finally install on your Mac Computer.
What triggered the install after the error message? Was it a series of hitting a continue button or something else?
Classically Adobe Technical Service does not support other than the current version (would be 13) and even then the support is limited and often ends with "Ask the Community". But, glad it all worked out for you.
Best wishes as you move forward with your Premiere Elements projects.