getting a error with a switch statement

i'm trying to make a switch statement but i'm getting 3 error lines on 1 line of code, the error's say "operator '==' cannot be used with a left hand side of type 'system.type' and a right hand side of type 'PlayerState'. (BCE0051)" i'm new to coding so i havent got a clue, any help would be much appriciated`

 enum PlayerState
 {
     schaaplinks = 0,
 
     schaaprechts = 1,
 
     schaaplinksspring = 2,
 
     schaaprechtsspring = 3,
 }
 
 var playerState = PlayerState.schaaplinks;    
 
 var lives     : int = 3;
 
 var key                      : int = 0;
 
 var coins : int = 0;
 
 var projectiellazer : GameObject;
 
 var projectielslotlinks : Transform;
 
 var projectielslotrechts  : Transform;
 
 var schaaplinks : Material;
 
 var schaaprechts  : Material;
 
 var veranderschaap : boolean = false;
 
 var kijktlinks : boolean = false;
 
 private var coinlive : int = 20;
 
 private var canshoot : boolean = false;
 
 function Update ()
 
 {}
 
 function Addkeys ( numkey : int )
 {
     key += numkey;
 }
 function Addcoins ( numcoins : int )
 {
     coins = coins + numcoins;    
 }
 function setPlayerState ()
 {
     var playerControls = GetComponent ( "playerControls" );
     var charController = GetComponent ( CharacterController );
     switch  ( PlayerState )
         {
         case PlayerState.schaaplinks :
             break;
         case PlayerState.shaaprechts :
             break;
         case PlayerState.schaaplinksspring :
             break;
         case PlayerState.schaaprechtsspring :
             break;