I have a wpf Application in which I am trying to reference a class library i have created.
I have added a reference to the .dll
And i have added the using statement to my fi
If you're getting this without a DLL - just a code file check it's set to compile. In Visual Studio 2013 I keep adding code files and it sets the Build Action (found under Advanced section of Properties of the code file to "Content" rather than "Compile". Change this.