CS0123: No overload for 'smsbtn_Click' matches delegate 'System.EventHandler'

There was a ImageButton in my aspx page.

protected void smsbtn_Click(object sender, ImageClickEventArgs e)
{
}

I changed the code. I used LinkButton instead of ImageButton.
protected void smsbtn_Click(object sender, ImageClickEventArgs e)
{
}

But i fogot to change the ImageClickEventArgs to EventArgs. That was the reason for getting this error. :)