New to Gepsio. XbrlException not defined

Jun 17, 2016 at 12:22 PM
I'm trying to run the two provided samples, in C# and in VB.NET. After adding the reference to the JeffFerguson.Gepsio.dll I get the following error in both cases "Type 'XbrlException' is not defined". What am I missing?

Thanks in advance
Best regards