Error Role Administrator does not exist in identity mvc

Question

hi everyone, i registered name email n contact number in identity ... then i put coded in controller here below public async Task Register(RegisterViewModel model) { if (ModelState.IsValid) { var user = new ApplicationUser { Name = model.Name, UserName = model.Email, Email = model.Email, IsActive = true }; var result = await UserManager.CreateAsync(user, model.Password); if (result.Succeeded) { // error shown like this below in red color UserManager.AddToRole(user.Id,RoleName.AdministratorRoleName); // RoleName.AdministratorRoleName ="Admin" given value UserManager.AddClaim(user.Id, new Claim(ClaimTypes.GivenName, model.Name)); await SignInManager.SignInAsync(user, isPersistent: false , rememberBrowser: false ); Anybody can solve? please support me

Ahmed Abdi · Answer

Hi Sonal, Are you refering to this project https://www.c-sharpcorner.com/article/clinic-management-project-using-asp-net-mvc-5 I didn't create the seed for admin and doctor roles. You can seed the roles using Dhrumit Patel solution or manualy add in the database. please read the repository readme https://github.com/AhmedMah/ClinicManagement

Dhrumit Patel · Answer

It's seems like there is no 'Administrator' exists that you want to assign user so first create 'Administrator' and then add user to this role Please check below code after create user successfully add below code var role = await _roleManager.FindByNameAsync(RoleName.AdministratorRoleName); // check role from db if((role) == null) { role = await _roleManager.CreateAsync(new ApplicationRole { Name = RoleName.AdministratorRoleName }); } UserManager.AddToRole(user.Id,RoleName.AdministratorRoleName); //assign role to user