can't access umbraco.uicontrols

I created an .aspx page for custom section which want some umbraco controls to display.

For this i added the following line in .aspx page.

<%@ Register TagPrefix="umb" Namespace="umbraco开发者_JS百科.uicontrols" Assembly="controls" %>

But i didn't get the controls like UmbracoPanel and Pane..

Can you help me on this.

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Did you add controls.dll as a reference to your website project?