Unity Doesn't Recognize an Assembly Reference?

Questions & Answers
1

Hi,

I am about to finish my 2D Multiplayer Game and i just clear some files in my project remove unused assets etc. and move all scripts to same folder.

Then the problem occurs.

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129458-unityerror2.png
129458-unityerror2.png716×409 23.2 KB

1-Tried Things to solve the issue.

2-Change the name of scripts folder.

3-Re Import everything in my project.

4-Update Visual Studio.

5-Update Cinemachine.

6-Update TextMeshPro.

7-Delete Library Folder from my project.

8-Delete .sln, .csproj from project folder.

I tried almost everything. How can i solve that issue ? Why Unity doesn’t find Assembly Reference That included in packages.
I have those packages i can’t upload third picture to show you.

2

i updated unity to 2018.3 but error still showing