Can't handle click event-not same signature

Method 'Protected Sub Button1_Click(sender As Object, e As System.Web.UI.ImageClickEventArgs)' cannot handle Event 'Public Event Click(sender As Object, e As System.EventArgs)' because they do not have the same signature
This is driving me nuts.  I"m doing the exact same thing on another page of mine, and I doesn't give me an error. Here is the code of the page that doesn't work. I get a "build errors" box pop up everything I start to debug this. 



Protected Sub Button1_Click1(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click 'if the names don't match don't continue If Me.TextBox2.Text <> Me.Label3.Text Then Me.Label1.Visible = True Exit Sub End If 'If the promotional code entered is legit then bypass paypal Dim amt As Int32 = Me.selectedplan.SelectedIndex ...