IOS Port Error : "GetComponent is not a member of Object"

heres my code snippet:

 #pragma strict
 
 function SelectPiece(){            
 
 // select piece to play
 
     var pieceScore : int[];        // piece move value/score
     pieceScore = new int[4];    // new array
     var pValue : int;            // move value
     var last : int;                // last piece value
     var piece : int;            // piece to play (piece is declared as an int - does unity cast this to object by default? )
     
     switch(game.turn){                    // select playing player
         case PlayerTurn.P1:                    
             if(gameScript.players[1] == Player.cpu){                        // if CPU player
                 for(var x = 0;x < 4;x++){                                    // loop pieces
                     pieceScore[x] = GetPieceScore(gameScript.p1pieces[x]);    // get piece score
                 }
                 for(x = 0;x < 4;x++){                // loop pieces scores
                     pValue = pieceScore[x];            // get piece value
                     if(pValue > last){                // if this piece has greater value then last piece
                         last = pValue;                // set new last best score
                         piece = x;                    // set playing piece
                     }
                 }
                 isSelect = true;                    // set piece selected
                 gameScript.p1pieces[piece].GetComponent("piece1").Click(PlayerTurn.P1);    // i get the error here// CPU play/click on selected piece
             }
             break;

i dont see anyway of casting this to a gameObject without getting the error "unity cannot convert int to UnityEngine.GameObject"

Please help!!! I know there are other post relating to this issue, but none of them directly addresses this issue. Im open to doing hella more research so if there are any links id be happy to explore them. I actually want to learn why this happens also or is it just IOS not supporting dynamic typing?

Thanks Guys!