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 had this same error. In my case I had built a library (call it commsLibrary) that referenced other libraries by including them as projects in my solution. Later, when I built a project and added my commsLibrary, whenever I would build I got the metadata file cannot be found error. So I added the libraries that my comms library referenced to the current project, then it was able to build.