Untitled

<html>
<body>
<br>
<%=start_form_tag ({:action => "at"},{:method => "post"}) %>
Please enter the name:
<%=text_field_tag ("test1","",{"size:"=>30}) %>
<br/><br/>
<input type=submit name=submit value=submit />
<%=end_form_tag %>
</body>
</html>

I am getting followng error

undefined method `start_form_tag' for #<ActionView::Base:0xb6dc7e20>