Role does not exist

Question

HI im trying to make the edit role functionallity keeping it short when i run the controller i get the error
System.InvalidOperationException: Role ADMIN does not exist.
at Microsoft.AspNetCore.Identity.EntityFrameworkCore.UserStore9.AddToRoleAsync(TUser user, String normalizedRoleName, CancellationToken cancellationToken) at Microsoft.AspNetCore.Identity.UserManager1.AddToRolesAsync(TUser user, IEnumerable`1 roles)
at IslamicSchool.Controllers.DeanController.EditRoles(String username, String roles) in D:\IslamicSchool\API\IslamicSchool\IslamicSchool\Controllers\DeanController.cs:line 47

ill attach the controller method as a picture

also the postman error

Answer 1

The error indicates the ADMIN role does not exist in the Role table. Add the role.