It looks like a color enumeration in which multiple colors are missing . This throws an exception when you try to load board data. There, several transfer requests are open to fix the problem, but the creator has not yet combined it, perhaps because all PR calls cause the test suite to fail.
As a quick workaround, you can clone the repository:
git clone https:
Refresh map \ Color.cs file
public enum Color { Green, Yellow, Orange, Red, Purple, Blue, Turquoise, Lightgreen, Pink, Sky, Lime, Black }
.. and then create a project in Visual Studio. Add the resulting TrelloNet.dll file as a link to your project, and you can get the board data.
Update
Via @ajwaka comment: Nuget has TrelloNet.Temp.Fork the same dev and seems to work.
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