Add an HTML ID option to Visual Composer rows in the X Theme

visual-composer-html-id-option.php

<?php
function x_child_visual_composer_update_existing_shortcodes(){
	if ( function_exists( 'vc_add_param' ) ) {
		vc_add_param( 'vc_row', array(
				'type' => 'textfield',
				'heading' => "HTML ID",
				'param_name' => 'element_id',
				'value' => '',
				'description' => __( "Assign an ID to the row", "discprofile" ),
			) );
		// Update 'vc_row' to include custom vc_row template and remap shortcode
		$new_map = vc_map_update( 'vc_row', array( 'html_template' => locate_template( 'vc_templates/vc_row.php' ) ) );
		// Remove default vc_row
		vc_remove_element( 'vc_row' );
		// Remap shortcode with custom template
		vc_map( $new_map['vc_row'] );
	}
}
add_action( 'wp_loaded', 'x_child_visual_composer_update_existing_shortcodes' );
?>

@mwender
I'm getting the following error when trying to use this function: Fatal error: Wrong vc_map object. Base attribute is required

Do you have any ideas?