In my current project I want to support English (en-US (default)) and German (de) for all German speaking countries like Austria, Switzerland, Germany. Therefore my supported language setting in my project properties looks like this:
If you install the Windows Phone Toolkit via Nuget ( https://nuget.org/packages/WPtoolkit ) there are two issues which you have to resolve.
First: Nuget does not install the language specific satellite assemblies
Second: The Windows Phone Toolkit does not support the basic culture “de”. Only the country specific “de-DE” culture.
To solve this issues, I have downloaded the Windows Phone Toolkit project from Codeplex ( http://phone.codeplex.com/ ) and duplicated the resource file “de-DE” also as “de” in the Windows Phone Toolkit project. After a compilation of the project I copied the resource assemblies to my Nuget package folder:
After this I will have the desired support from the Windows Phone Toolkit for the basic culture “de”.