Update data with Entity Framework

Question

I have a problem that when I have this code below:

 public static String GravarNoBDFildes(List<Fildes> dados)
 {
         try
          {
             Console.WriteLine("Começando o processamento");
             var inseridos = new List<Fildes>();

             using (var fildesContext = new FildesContext())
             {
                    fildesContext.Configuration.AutoDetectChangesEnabled = true;
                    dados.ForEach(x => {   
                      var retorno = fildesContext.Fildess.Add(x);
                      inseridos.Add(retorno);
                    });                    

                    fildesContext.ChangeTracker.DetectChanges();
                    fildesContext.SaveChanges();
             }
             Console.WriteLine("Dados inseridos no Banco" + JsonConvert.SerializeObject(dados));
             return "Processamento foi concluido";
          }
 }

This error occurs when I start the console project:

"Processing failed with error: An error occurred while updating the Entries. See the Inner Exception for Details.".

What would that mistake be and how can I fix it please.

Answer 1

Debug the code and take a look at Innerexception, inside it has a list of errors that were generated during the command there you will find what went wrong.