使用应用程序用户 Microsoft 标识，出现错误：无法在帐户 Controller 中使用存储库

Question

由于我正在使用依赖注入，因此无法在帐户存储库的 UserRegister 方法中插入用户 object。 请参考所附图片以便您更好地理解。

错误图片：请查看。

主要代码图片：请参考。

依赖注入图片：请参考

public async Task<ActionResult> Register(RegisterViewModel model)
            {
                if (ModelState.IsValid)
                {
                    var user = new ApplicationUser { UserName = model.Email, Email = model.Email };
                    var result = await UserManager.CreateAsync(user, model.Password);
                    if (result.Succeeded)
                    {              
                    User _userObj = new User();
                         _userObj.Id = user.Id;
                         _userObj.Email = user.Email;
                         _userObj.EmailConfirmed = user.EmailConfirmed;
                         _userObj.PasswordHash = user.PasswordHash;
                         _userObj.SecurityStamp = user.SecurityStamp;
                         _userObj.PhoneNumber = user.PhoneNumber;
                         _userObj.PhoneNumberConfirmed = user.PhoneNumberConfirmed;
                         _userObj.TwoFactorEnabled = user.TwoFactorEnabled;
                         _userObj.LockoutEndDateUtc = user.LockoutEndDateUtc;
                         _userObj.LockoutEnabled = user.LockoutEnabled;
                         _userObj.AccessFailedCount = user.AccessFailedCount;
                         _userObj.UserName = user.UserName;

                         _accountObj.UserRegister(_userObj);//𝗼𝗯𝗷𝗲𝗰𝘁 𝗿𝗲𝗳𝗲𝗿𝗲𝗻𝗰𝗲 𝗻𝗼𝘁 𝘀𝗲𝘁 𝘁𝗼 𝗮𝗻 𝗶𝗻𝘀𝘁𝗮𝗻𝗰𝗲 𝗼𝗳 𝗮𝗻 𝗼𝗯𝗷𝗲𝗰𝘁.'_𝗮𝗰𝗰𝗼𝘂𝗻𝘁𝗼𝗯𝗷 𝘄𝗮𝘀 𝗻𝘂𝗹𝗹'.

                    await SignInManager.SignInAsync(user, isPersistent: false, rememberBrowser: false);

                    return RedirectToAction("Index", "Home");
                }
                AddErrors(result);
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }