VS 2017 Metadata file '.dll could not be found

Question

I know there is another question with exact the same problem, but I went trough all those answers, and none helped me. :( (This was the question.)

I just created a new A

Answer 1

I fix this problem following this steps:

1. Clean Solution
2. Close Visual Studio
3. Deleting /bin from the project directory
4. Restart Visual Studio
5. Rebuild Solution