When you install the required NuGet packages there is a packages
folder created inside your solution folder, so you will need to go inside the Telerik.Windows.Controls.de.for.Wpf.40.2014.2.0729/lib/net40
and copy the de
folder ( together with the resource file in it) inside the same folder where Telerik.Windows.Controls.dll
is located (it should be Telerik.Windows.Controls.for.Wpf.40.2014.2.0729\lib\net40
Please try it and let us know whether this helps.
Check out Telerik Analytics, the service which allows developers to discover app usage patterns, analyze user data, log exceptions, solve problems and profile application performance at run time. Watch the videos
and start improving your app based on facts, not hunches.