versions of prism 7 and 8 exception on contentcontrol region for framework 4.7

[stevensrf11]

Does a region adapter now have to be created for a ContentContol?
I created WPF .Net Framework 4.7 Application identical to the Sample 2 Region demo. I tested every version of Prism 7 annd Prism 8, and for all version an exception is thown about a region adapter not being create for content control.
Has anyone else heard reports on this happening from anything ?

The eception occurs here in Prim's code
public static void UpdateRegions()
{

        try
        {
            updatingRegionsListeners.Raise(null, EventArgs.Empty);
        }
        catch (TargetInvocationException ex)
        {
            Exception rootException = ex.GetRootException();

            throw new UpdateRegionsException(string.Format(CultureInfo.CurrentCulture,
                Resources.UpdateRegionException, rootException), ex.InnerException);
        }
    }

[stevensrf11]

Well I found the problem for the .Net Framewrok,
If the Project has a period in it the the exception occurs.
For Example name a WPF Project Wpf.SampleApp the add prism unity and give a region name to a content control and the exception occurs. That sucks.

[stevensrf11]

Well I found the previous email about the fix may be incorrect.
It  seems if the ContentControl Content is set like below the exception is thrown. Like Shown below
<Window x:Class="WpfApp1.Views.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:prism="http://prismlibrary.com/"
        Title="Shell" Height="350" Width="525">
   
       
   

If the ContentControl Content is not shown at all as shown below the exception does not occurr
<Window x:Class="WpfApp1.Views.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:prism="http://prismlibrary.com/"
        Title="Shell" Height="350" Width="525">
   
       
   

[brianlagunas]

See #2389