C# script parse error

Hello! I'm getting a parse error at line 62 (end of the file) in this code:

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class mTile{
     mTile(){
         position = new Vector2();
         neighbours = new List<mTile>();
     }
     public Vector2 position;
     public List<mTile> neighbours;
 };
 
 public class CollisionGenerator : MonoBehaviour {
 
     Dictionary<Vector2, mTile> map;
     List<mTile> firstPathMap;
     public int mapWidht = 0;
     public int mapHeight = 0;
     public float tileDensity = 1.0f;
     //Collision creation goes in two passes, first I create the nodes ( If the node is notWalkable, don't create it)
     //After that I create the relations between the nodes, depending if KeyExists
     void Start(){
         createNodes();
         createRelations();
     }
 
     void createNodes(){
         //First pass
         for(float y = 0; y < mapHeight; y++){
             for(float x = 0; x < mapWidht; x++){
                 Vector2 pos = new Vector2(x + tileDensity/2.0f, y + tileDensity/2.0f);
                 RaycastHit2D[] rayHit2D = Physics2D.RaycastAll(pos, new Vector2(0.0f, 0.0f), 0.1f);
                 foreach(RaycastHit2D rayHit in rayHit2D){
                     if(!rayHit.collider.tag == "Imovable" && !rayHit.collider.tag == "Vent"){
                         //Here the AI can move, create an mTile
                         mTile tmpTile = new mTile();
                         tmpTile.position = pos;
                         map.Add(tmpTile.position, tmpTile);
                     }
                 }
             }
         }
     }
 
     Dictionary<Vector2, mTile> getGraph(){ return map; }
     void createRelations(){
         Vector2[] dirs = new Vector2[8] {
             new Vector2(-0.5f, 0.0f), new Vector2(-0.5f, -0.5f), new Vector2(0.0f, -0.5f), new Vector2(0.5f, -0.5f), 
             new Vector2(0.5f, 0.0f), new Vector2(0.5f, 0.5f), new Vector2(0.0f, 0.5f), new Vector2(-0.5f, 0.5f)
         };
         foreach(KeyValuePair<Vector2, mTile> tile in map){
             for(int i = 0; i < dirs.Length; i++){
                 tile.Value.neighbours.Add(map[tile.Value.position + dirs[i]);
             }
         }
     }
     // Update is called once per frame
     void Update () {
     
     }
 }

Now there is something strange happening in Monodevelop, the last line is also filled with whitespaces and whenever I try to create a newline below createRelations() (hitting enter) it creates a newline... BUT it also fills half the screens width on that line with whitespaces. I've searched a bit but all I can find about parse errors are because of functions named the same thing or missing curly braces, I have checked for both. Thank you very much!