Titan Framework and LESS Variables

example.php

<?php
/**
 * Pass variables from Titan Option to WP-LESS. This seems tricky.
 */
function cf_theme_variables()
{
	if (class_exists('WPLessPlugin')){
	    $titan = TitanFramework::getInstance( 'cfcommunity-roots' );
	    $less = WPLessPlugin::getInstance();
	    $primary_brand = $titan->getOption( 'my_text_option' );

	    $less->addVariable('custom-brand-primary', $primary_brand);
	    // you can now use @myColor in your *.less files

	    // you can now use @minSize in your *.less files
	    // @myColor value has been updated to #777
	}
}
add_action( 'plugins_loaded', 'cf_theme_variables' );
?>

Current error:

Fatal error: Uncaught exception 'Less_Exception_Compiler'
with message 'variable @custom-brand-primary is undefined' in 
lib/vendor/wp-less/lib/vendor/less.php/lib/Less/Tree/Variable.php:48 S