Using WebMatrix 3 I get the following clicking on the template or app link when I want to create a new site :
Unable to download the Web Platform product list. Check your network connection and try again. If the problem persists, report the issue on the Web Platform Installer forum at: http://go.microsoft.com/fwlink/?LinkId=145244.
Details:
One or more errors occurred.
ProductId NodeJSClient not found.
System.AggregateException: One or more errors occurred. ---> System.InvalidOperationException: ProductId NodeJSClient not found.
at Microsoft.WebMatrix.Gallery.Wizard.GalleryWizardModel.Load()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()
--- End of inner exception stack trace ---
---> (Inner Exception #0) System.InvalidOperationException: ProductId NodeJSClient not found.
at Microsoft.WebMatrix.Gallery.Wizard.GalleryWizardModel.Load()
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()<---
There, any advise?