Sierra as Guest OS fails to install

Trying to install the official version of macOS Sierra, released today 2016-09-20.

When I use the Parallels Wizard to create a new VM, I selected the "Install macOS Sierra.app" app as listed. Next step is saving the "OS X image file.dmg" file with its default name in a folder I choose. Then I get the error "Failed to create a bootable disk image file for this version of OS X.". Running Parallels 12.0.2 on a MacBook Pro with El Capitan.

Ironically, I successfully did this same operation with the second, and last, GM seed from Apple using Parallels 12.0.1. Now, a few days later, I cannot install the official Sierra release with Parallels 12.0.2 (.2 update of Parallels is last day or two).

 

Hi,
I had the same problem.
I restarted my mac, and also disabled my anti-virus (Bitdefender). And it's fine now.
Hope that helps
++