Windows Workflow foundation state machine programming

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C#

Windows

console

Hello I am new to Windows Workflow foundation and try to write workflow (State Machine ) using Object Model. I am Getting This error

StateMachine "Activity1" Must have an initial state .

Can any body please give me answer . My code is below...Thanks in advance

Activity SMwf = new StateMachine()
           {

               States =
               {
                  new State(){
                     Entry = new Sequence()
                     {
                         Activities = {

                             new WriteLine(){Text="Entry Point....."},
                             new Delay(){ Duration = TimeSpan.FromSeconds(30)}
                         }
                     },
                     Exit = new Sequence(){
                           Activities = {

                               new WriteLine(){Text = "Exit Point"},
                               new Delay(){ Duration = TimeSpan.FromSeconds(30)}
                           }
                     },
                     Transitions = {
                         new Transition {
                         DisplayName ="T1",
                         Action ={},
                         Condition={
                         },

                         }

                     },
                     DisplayName ="State1",

                  },
                  new State(){
                     Entry = new Sequence()
                     {
                         Activities = {

                             new WriteLine(){Text="Entry Point....."},
                             new Delay(){ Duration = TimeSpan.FromSeconds(30)}
                         }
                     },
                     Exit = new Sequence(){
                           Activities = {

                               new WriteLine(){Text = "Exit Point"},
                               new Delay(){ Duration = TimeSpan.FromSeconds(30)}
                           }
                     },
                     DisplayName ="State1",

                  }
               },
               DisplayName = "Activity1",


           };

           try
           {
               WorkflowInvoker.Invoke(SMwf);
           }
           catch (Exception ex)
           {
               Console.WriteLine(ex.Message);
           }