Seemingly random console error, FileNotFoundException: Could Not Find File C:\Project\Assembly-CSharp.csproj

Awesome, this error was annoying me.

This is how I modified the file, I'm using File.Exists to check if the assembly is there - not sure if there's a more correct way.

 using UnityEngine;
 using UnityEditor;
 using System.IO;
 using System.Xml;
 
 public class CSProjectFilePostProcessor : AssetPostprocessor
 {
     // Add unsafe option to generated project file for Third Party assets that require it such as Easy $$anonymous$$ovie Texture.
     static void OnGeneratedCSProjectFiles()
     {
         if (File.Exists("Assembly-CSharp.csproj"))
         {
             // All of the probably copyrighted code  that was previously here
         }
     }
 }