Marko Apfel - Afghanistan/Belgium/Germany

Management, Architecture, Programming, QA, Coach, GIS, EAI

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July 2015 Entries

By playing with F# and ArcGIS Runtime I tried to re-create a sample C# project to F#. For the WPF part I used the Visual Studio extension F# Empty Windows App (WPF) and F# Windows App (WPF, MVVM) the NuGet packages FSharp.ViewModule.Core and FsXaml for WPF. The XAML I copied more or less without changes to the F# project. During running the app it immediately crashed with an error: Additional information: 'Cannot create unknown type '{ Line number ......

During compilation of the F# Empty Windows App (WPF) I got that error (check the output pane carefully). To solve this issue you have to thrust of the XAML Type Provider of this project. This you can do via the Visual Studio options: ......