This version of Unity is unsupported.

EditorSettings.projectGenerationBuiltinExtensions

public static string[] projectGenerationBuiltinExtensions;

Description

Built-in list of extensions of files that will be included in the c# projects Unity generates.

This property is read only. If you want to include additional files in the generated project files, use EditorSettings.projectGenerationUserExtensions.

using UnityEngine;
using UnityEditor;

public class Example { [MenuItem("TryMe/GetExtensions")] static void Doit() { foreach (var extension in EditorSettings.projectGenerationBuiltinExtensions) Debug.Log("extension: " + extension); } }