Invalid characters in Merged ResourceDictionary

Question

I have the following resource dictionary

<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

   <ResourceDictionary.MergedDictionaries>
       <ResourceDictionary Source="pack://application:,,,/Asi.Ui.CustomControls;component/Themes/ExpanderItem.xaml" />
   </ResourceDictionary.MergedDictionaries>
</ResourceDictionary>

I get a Resharper 7.1.3 error on "application:,,," reporting "Invalid characters in path".

From what I understand this is the correct syntax of the merged dictionary. Did I do something wrong with the syntax? If the syntax is correct why am I getting this error?

The code compiles and seems to run fine, but I'm not sure if this will come back to bite me later.

Answer 1

I encountered the same problem when I added a reference to "System.Windows" into the referenced xaml assembly, which in your case is Asi.Ui.CustomControls. Removing this reference fixed the error.

Although the application built and ran successfully with the reported issue, it had the annoying side effect that the intellisense stopped working when editting the dictionary source path.