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I have just created a ASP.NET web API project with Visual Studio 17 and I have created a Class Library to connect it to an SQL database I created. the problem is when I try to create a controller in the project, I get the error,

There was an error running the selected code generator: could not load file 'ClassLibrary.dll' or one of it's dependencies. this system could not find the file specified.

Does anyone what the problem could be. I have looked at the folder where the said file should be contained in the ClassLibrary and it is empty.

I gather that it might be from my Entity Framework, I am using ADO.Net Entity Data Model.

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  • check Framework version for these projects Commented Jun 15, 2017 at 16:17
  • You might also want to just close & reopen visual studio. Commented Jun 15, 2017 at 16:34

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For ASP.NET web API project no need to add Class Library:

  • Just right click in Solution and add ADO.net Model
  • Configure with Database
  • Add required Database Tables
  • Build solution
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First you have to add reference of your class library project if you don't then just give a built to your project in which you added a reference of class library project, then try to create a controller it will definitely help you....

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Please provide additional details in your answer. As it's currently written, it's hard to understand your solution.

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