FPS Audio Issue

Hi, Im trying to make footstep audio when i walk in my game. But here is my error:

MissingComponentException: There is no 'AudioSource' attached to the "First Person Controller" game object, but a script is trying to access it. You probably need to add a AudioSource to the game object "First Person Controller". Or your script needs to check if the component is attached before using it. FootStepsOn.PlayAudio () (at Assets/FootStepsOn.js:71) FootStepsOn.Update () (at Assets/FootStepsOn.js:11)

Here is my code:

 var walk : AudioClip;
      var run : AudioClip;
       
      var isWalking : boolean = false;
      var isRunning : boolean = false;
       
       
      function Update()
      {
      GetState();
      PlayAudio();
      }
       
       
      function GetState()
      {
      if ( Input.GetAxis( "Horizontal" ) || Input.GetAxis( "Vertical" ) )
      {
      if ( Input.GetKey( "left shift" ) || Input.GetKey( "right shift" ) )
      {
      // Running
      isWalking = false;
      isRunning = true;
      }
      else
      {
      // Walking
      isWalking = true;
      isRunning = false;
      }
      }
      else
      {
      // Stopped
      isWalking = false;
      isRunning = false;
      }
      }
       
       
      function PlayAudio()
      {
      if ( isWalking )
      {
      if ( GetComponent.<AudioSource>().clip != walk )
      {
      GetComponent.<AudioSource>().Stop();
      GetComponent.<AudioSource>().clip = walk;
      }
       
      if ( !GetComponent.<AudioSource>().isPlaying )
      {
      GetComponent.<AudioSource>().Play();
      }
      }
      else if ( isRunning )
      {
      if ( GetComponent.<AudioSource>().clip != run )
      {
      GetComponent.<AudioSource>().Stop();
      GetComponent.<AudioSource>().clip = run;
      }
       
      if ( !GetComponent.<AudioSource>().isPlaying )
      {
      GetComponent.<AudioSource>().Play();
      }
      }
      else
      {
      GetComponent.<AudioSource>().Stop();
      }
      }

AND here is an image that i attached the audio together: