ho una apgina che mi restiruisce questo errore

BC30590: Impossibile trovare l'evento "Load".
la pagina sarebbe

codice:
Imports System
Imports System.IO
Imports System.web
Imports System.web.UI
Imports System.web.UI.WebControls
Imports System.web.UI.HtmlControls

Public Class dir
	protected withEvents cmdBrowser as button
	protected lblDir_ini as Label
	protected lstDir as ListBox
	protected withEvents cmParent as button
	protected withEvents cmdShowInfo as button

	private sub Page_load(sender as object, e as eventArgs) handles MyBase.Load 
		if Me.isPostback=false then

...
...etc etc
come mai si blocca a myBase.load?