Scaffolding controller doesn't work with visual studio 2013 update 3 and 4
c# entity-framework visual-studio
Question
Im unable to scaffold a controller (MVC5 Controller with views, using Entity Framework) in Visual studio 2013 (update 3 and 4). The error message is below:
There was an error running the selected code generator:
A configuration for type 'Library.Morthwind.Models.Catgeory' has already been added. To reference the existing configuration use the Entity<T>() or ComplexType<T>() methods
I have created the models by selecting 'Reverse Engineer Code First' from the 'Entity Framework Power Tools Beta 4' Tool menu.
Any ideas about what might cause this error?
Popular Answer
I had the same issue today.
I had added some custom configuration for one of my Model classes to add a relationship using the fluent API. This was specified in my dbContext class in the OnModelCreating override using the following:
modelBuilder.Configurations.Add(new OrderConfiguration());
Commenting out the above line allowed the Controller scaffolding to run as expected.
VS 2013 update 2 had a problem with this and the scaffolding came up with an unhelpful error with no further information. In installed Update 3 and it gave just enough detail to track down the underlying issue.
Jeff.
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