title: Unity Intellisense doesn't work(Solution1, Miscellaneous Files issue)
body: <p>I can't use Intellisense in visual studio. When I double-click a c# file in Unity, visual studio shows up. But on top, I can't see my project name. Instead there is &quot;Miscellaneous Files&quot;. So Intellisense doesn't work.</p>
  <p>What I've already tried:</p>
  <p><strong>1</strong></p>
  <p>I opened the external script editor, it was default &quot;open by file extension&quot;. I changed it to vs 2017 and vs 2019. But this time when I open my scripts from Unity, it doesn't open. So I changed it back to &quot;open by file extension&quot;.</p>
  <p><strong>2</strong></p>
  <p>I controlled the visual studio tool for Unity. I already downloaded it.</p>
  <p><strong>3</strong></p>
  <p>In solution explorer, right clicked and added &quot;RegularFight.sln&quot; again. Nothing changed but then clicked folder view. And I can use Intellisense. But this is temporary. I have to do this everytime.</p>
  <p><strong>4</strong></p>
  <p>Show the project on explorer. There is &quot;RegularFight.sln&quot; which is my projects name and which is 1KB. So it means it's an empty solution. And there is &quot;Assembly-CSharp.csproj&quot; it's 45KB and it includes my scripts. When I open it I can use Intellisense.</p>
  <p>So I want to use Intellisense when I open my script from Unity. How can I fix it?</p>
  <pre><code>Unity version: 2020.1.7f1
  </code></pre>