Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware[1] An unhandled exception has occurred while executing the request. System.NotSupportedException: No IUserTwoFactorTokenProvider<TUser> named 'Default' is registered. code example
Example: No IUserTwoFactorTokenProvider named 'Default' is registered.'
// startup.cs
public void ConfigureServices(IServiceCollection services)
{
// ....
services.AddIdentityCore<User, UserRole>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultTokenProviders(); // Remember to add this line!
// ....
}