执行清除后，名称空间中不存在类型或名称空间名称

Question

This problem is making me officially crazy, until now everything was working correctly, now the program is showing a lot of monstrous errors.

In practice, I clicked with the right mouse button on the project and I selected "Clean", when I clicked "Compile" I got so many errors like:

The type or namespace does not exist in the namespace

I looked for the error on the internet and I found these:

Type or namespace name does not exist

but it did not help me, also I'm working with 5 projects, and everyone has set up version as 4.6.1

Answer 1

This happens after Clean when you haven't set your Solution Build Sequence properly.

If missing reference is in same solution

Two possible fixed

Try Building each project those are referenced with in other projects individually.

Or

Make a proper build sequence of projects in your solutions..