Добавьте файлы проекта.

Новая папка/HomeController.cs

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+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+
+namespace yaflay.ru.Новая_папка
+{
+    [Route("")]
+    public class HomeController : Controller
+    {
+        // GET: HomeController
+        
+
+        // GET: HomeController/Details/5
+        public ActionResult github()
+        {
+            return Redirect();
+        }
+
+        // GET: HomeController/Create
+        public ActionResult Create()
+        {
+            return View();
+        }
+
+        // POST: HomeController/Create
+        [HttpPost]
+        [ValidateAntiForgeryToken]
+        public ActionResult Create(IFormCollection collection)
+        {
+            try
+            {
+                return RedirectToAction(nameof(Index));
+            }
+            catch
+            {
+                return View();
+            }
+        }
+
+        // GET: HomeController/Edit/5
+        public ActionResult Edit(int id)
+        {
+            return View();
+        }
+
+        // POST: HomeController/Edit/5
+        [HttpPost]
+        [ValidateAntiForgeryToken]
+        public ActionResult Edit(int id, IFormCollection collection)
+        {
+            try
+            {
+                return RedirectToAction(nameof(Index));
+            }
+            catch
+            {
+                return View();
+            }
+        }
+
+        // GET: HomeController/Delete/5
+        public ActionResult Delete(int id)
+        {
+            return View();
+        }
+
+        // POST: HomeController/Delete/5
+        [HttpPost]
+        [ValidateAntiForgeryToken]
+        public ActionResult Delete(int id, IFormCollection collection)
+        {
+            try
+            {
+                return RedirectToAction(nameof(Index));
+            }
+            catch
+            {
+                return View();
+            }
+        }
+    }
+}