Why is Resource.Designer.cs not created

I created a class library (Mono for Android) and put the folders Resources/Drawable, Resources/Layout and Resources/Values in it.

Unfortunately the file Resource.Designer.cs is not created automatically. I've all xml-Files set on BuildAction "AndroidResource"开发者_JAVA技巧... but no recource file is created.

DO I have to do something else?

Thanks a lot!

---

There isn't support for resources in a class library project. Resources must be in the main application project.