After reload a swf I get TypeError: Error #1034: Type Coercion failed

[aolba]

I have a game in a swf. everything works fine the first time it loads... but if I unload and reload the swf. I get this:

TypeError: Error #1034: Type Coercion failed: cannot convert com.client.games.shootGame.rowManager::Cell@3d3b5ca1 to com.client.games.shootGame.rowManager.Cell.

I track the code to the breaking point:

private function _createGrid():void {
	
				
	for (var i:uint = 0; i < _cellsTall; i++) {	
		var _row:Vector.<Cell>;
		_row = new Vector.<Cell>;				
		for (var j:uint = 0; j < _cellsWide; j++) {					
			thisCell = new Cell(new Cell_display() as MovieClip, _cellWidth, _cellHeight);					
			_row.push( thisCell );
		}
		pushRow(_row);
	}
	dispatchEvent(new RowManagerEvent(RowManagerEvent.UPDATED_DIMENSIONS));
}

if I understand the error it says that the var " thisCell " is not an apropiated kind to insert inside the vector array " _row ". Is so weird...the var is the right kind... but this beat me today.

I hope someone has and idea or have this issue before.

[ASWC]

Has to do with ApllicationDomain. Your main app already has a loaded definition for that class and will not accept the enforcement of a new one unless you apply the proper ApplicationDomain (thus enforcing that the first definition is kept).

[aolba]

I will take a look to that idea. Thanks.

[aolba]

Thanks. It seems like the problem was related to that subject. It was resolved online, but when I preview the file in the Flash IDE...I get the error.