Validation Error - Object reference ont set to instance of object

[reinstman]

I'm getting a validation error "Object reference not set to an instance of an object" when I try to install the latest version of Backyard EOS Premium (3.1.16).  This installation became necessary after my Windows 10 updated to version 1709.  I'm sure my product key and identifier are correct because I get different error messages when they're entered incorrectly.  Please with suggestions.  Thank you.

[admin]

I have a gut feeling a file is corrupted.

Delete this file and try again: c:\users\<<username>>\appdata\BackyardEOSv31-license.txt.

The folder appdata is a hidden folder so you may have to set windows to show hidden folders/files.

Keep us posted.

[astroman133]

Nobody else has reported this error. First, I would assume that the issue is a corrupted installation and try removing BYE and re-installing it in a different folder. Then, if that still gives you the same error then I would try installing BYE 3.1.17 RC2 from the Pre-releases area of the web site.

[reinstman]

Thanks to both of you.  Guylain, your idea solved the problem.  I'm back to imaging again.