If you create a class diagram that contains types found in assemblies that your project references, and then you leave the class diagram open when you close Visual Studio, you may see some errors in the class diagram when you re-open the solution. The types on the class diagram may all be drawn in red and report “Type cannot be found”.
You can fix this problem by just closing and re-opening the class diagram. The diagram will re-discover the information for the types.
Filed under: Visual Studio Tagged: C#, Class Diagram, Visual Studio
