DLL Not found

Question

when running my application, I’m receiving the error warning, informing DAL.dll has not been found. I have no idea what it might be, I’m following a tutorial, these are my first steps with C#. I’m using VS 2017.

Answer 1

Searching for the same problem, I was able to correct after a few attempts.

First a few explanations:
The bin folder receives the DLLs of your project after the Solution. If you give a Clean in the project, those DLLs will be removed until a Build be performed again.

Try this to fix:
Right click on Solution in Solution Explorer -> Properties -> Configuration Properties and check the checkbox Build is checked for each of the layers.

In case you’re checking and you’re still not generating DLLs, follow the steps of Solution 1 and if it doesn’t work try to Solution 2:

Solution 1

1. Of a Clean in his Solution
2. Right click on your layer applying and, in frammework, check which version is set (in my case 4.5.1).
3. Go to the same option as the item 2 in all other layers and set all frameworks for the same version.
4. Save your project and a Build

Solution 2

1. Of a Cleanin his Solution
2. Restart the Visual Studio
3. Clear the Builds as explained above and click on apply
4. Check them again, click Apply and Ok
5. Of a Build in his Solution and check whether the DLLs were generated

Check that question in Soen with other possible solutions.