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Editorial Team
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Asked: 2026-06-07T16:24:14+00:00

I am working on a C# application which I have divided it to few

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I am working on a C# application which I have divided it to few projects. Recently when the solution becomes larger, I get different errors such as MissingMethodException or even worse, DLL not found messages.

The only solution is to delete my bin folder and build the project again.

I wonder if this is a common problem with visual studio or might be I am doing something wrong?

UPDATE:

I am working on a winforms soloution, while one project is the form and other projects are user control, data models and etc.

I do reference the needed project in other projects using the visual studio’s add reference option.

UPDATE 2

I am suspecting when I have a new .cs file to extend a class using partial keyword in any projects this happens!!!! I am 99% sure, I am going to check some more times to see of this is really the case!

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1 Answer

  1. Editorial Team

    It’s not really a common problem but messy things can happen some times on visual studio.

    What I would do is to check the settings and dependencies of every project and check things like they build in the correct order, platform, output path, etc. In our case, some times when the solution travels to many developers/computer settings can alter.

    Also another thing you could do would be to copy the main project to a new solution and add the rest of the projects. This has worked form me in a similar situation.

    I hope I gave you some ideas.

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