I've recently upgraded to DNN 4.05.04 and am having difficulty creating a new child portal.  I receive an error message that states: Error creating Profile Definitions.

What am I doing wrong, or what setting needs to be changed?

Thanks

I am also having trouble adding a new portal.  My portal is not a child portal, it is a parent portal, but I receive the same error message 'Error creating Profile Definitions'. 

The error happens whether I have a strong password (at least 7 chars, upper and lower, and a number) supplied or not.  The admin user name is 7 characters and includes upper and lower case characters.  All fields in the security settings section are filled with valid values.  After receiving the error, when I go back to the portals page under host menu, I can see the portal I have tried to create, but it has -1 pages and when I click the edit icon next to it, there is a 'Object reference' error in the sitesettings module. 

I have tried deleting and recreating the portal several times with different values for the securtiy section.

I recently upgraded from 4.3.x to 4.5.5.  I have several other portals on the site that I added before the upgrade.  This is the first portal I have added since upgrading to 4.5.5

Holy unrelated error message... batman. 

I can confirm that choosing the DotNetNuke template is what fixed my error message.  I was previously selecting the Small Business template.