Scaffolding in .Net Core with Multiple Projects in Solution

6
votes

I have created an .Net Core MVC6 application targeting net461. I have used a project structure I am very familiar with in which I place the data, model, and service classes in separate class library projects and the Web project references these.

When I attempt to scaffold a controller I receive an error that multiple matching types exist for the model I am scaffolding.

If I move all code to a single project, scaffolding is successful. If I move the context to Web project and leave the model in a separate project, I receive an error the NO matching types were found.

Has anyone else seen this same issue? Is there a workaround to still use this type of architecture?

Update

I started another project and always get this issue. I get this error when only using 1 extra project for the models. Attached is the error I recieve.

Scaffolding Error

Update 2

When the context and model are in the same project I receive this error.

Error editing dbContext

1
c#asp.net-core-mvcentity-framework-coreasp.net-core-1.0asp.net-mvc-scaffolding
Hi,not sure if related but probably not ,but I am having issues in calling classes located in a different project in same solution.Solution compiles but cannot call class as main project even though is referenced call see this class/assembly.Have you had the same issue? I put a project on github github.com/developer9969/ProjToProjReference. – developer9969
@developer9969 Do you have resharper? If so, do you have build errors or just intellisense? Resharper does not fully support rc2 yet. blog.jetbrains.com/dotnet/2016/05/27/… – David Newberry
yes I have resharper the solution compiles but if I try to call the class on a project within solutions I can't because visual studio doesn't show me the new class in either in the using statements or by instantiating it. – developer9969
yes you are right disabled resharper and my intellisense now works.It fooled me for all weekend.GRRRRRR.THANKS! – developer9969
@developer9969 On a side note I didn't fully disable Resharper. I just added the Views folder to the ignore list in Resharper => Options => Code Inspection => Settings => Elements to skip. This seems to work fine and lets me use other Resharper features such as conver to LINQ and etc. – David Newberry

1 Answers

10
votes

Cannot post a comment, so I've to write an answer instead. I also had the same issue and opened it on Scaffolding github repository. Here's the response:

currently there is an issue with scaffolding, that it doesn't support model classes outside of the current project properly.

As a workaround, you can add the model temporarily to your web project and then move it to the BLL/ DAL projects after scaffolding.

Plus they also opened this issue as a bug, quoting:

Scaffolding fails if model class is in a dependency (project/ library) of the project on which scaffolding is being run. #251

Project A has a dependeny on Project B. Project B has model class If you try to run scaffolding on Project A by using model class from Project B, it fails with the below error: No model type returned for type:

Hence, as of RC2, this is a bug in scaffolding tooling.