WPF Prism Request Navigate activation error

There are no problems with other test items, but some items sometimes navigate all the time to report errors!

Referring the Stocktraderri, I created a popup region in my shell

Infbehaviors:regionpopupbehaviors.createpopupregionwithname="{x:static inf: Regionnames.secondaryregion}"

In the module I am trying to load the view to the popup

New Uri ("/orderdetailsview", urikind.relative));

Orderdetailsview is a view within Orderdetailsmodule. At this point I am getting the below error

 while Get " Orderdetailsview "

Stack Trace looks like below

inch  - In 103 at        Prism.Regions.RegionNavigationContentLoader.CreateNewRegionItem (String candidatetargetcontract)

Problem solving:

You must register your objects for navigation. If you is using Prism 6 you must use

Container.registertypefornavigation<orderdetailsview> ();

If using V5 or less your must use：

Container. Registertype (typeof(objecttypeof"orderdetailsview");

Edit:if using MEF, you must provide the view name in the Export Attribute:

[Export ("orderdetailsview")]  Public class orderdetailsview:usercontrol{...}

Problem Solving!

Http://stackoverflow.com/questions/33301926/wpf-prism-request-navigate-activation-error

Https://github.com/PrismLibrary/Prism/blob/master/Documentation/WPF/60-Navigation.md#basic-region-navigation

WPF Prism Request Navigate activation error