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via Stack Overflow by Kike Collada
, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at fichasGeneral.FichasGeneral.valorContable(	at fichasGeneral.FichasGeneral.toString(	at java.lang.String.valueOf(	at java.lang.StringBuilder.append(	at fichasGeneral.FichasRegistradas.toString(	at java.lang.String.valueOf(	at	at controladores.ControladorFichasGeneral.ejecutarAccion(	at controladores.ControladorFichasGeneral.controlarFichas(	at controladores.ControladorPrincipal.ejecutarMenuPrincipal(	at controladores.ControladorPrincipal.controlar(	at principal.Main.main(