I am getting this same error above
This is reproduced by simply going into the wizard and trying to publish the site. Mine occurs at 91%.
There are no errors logged into the SiteBuilder log:
System 9/28/2008 9:25:08 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:24:30 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:24:29 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:24:25 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:24:25 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:23:44 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:23:44 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:22:58 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:22:58 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:14:41 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:14:41 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:14:37 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:14:37 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:12:23 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:12:23 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
System 9/28/2008 9:09:56 PM admin 68.102.148.30 Target environment has been checked successfully....
System 9/28/2008 9:09:56 PM admin 68.102.148.30 Main check script has been uploaded via FTP....
This problem might also be related to trying to publish from the Admin area rather than the wizard. Clicking either the publish icon (globe) in the site listing, or clicking the button to Publish Site from the listing detail page, I get the following error:
File Not Found
Firefox can't find the file at
http://sitebuilder.nitrouswebsites.com/Admin/Site/Publish.
* Could the item have been renamed, removed, or relocated?
* Is there a spelling, capitalization, or other typographical error in the address?
* Do you have sufficient access permissions to the requested item?