PHP Notice: wp_enqueue_script was called incorrectly.

I was getting this error message and found a solution by editing the woocommerce.php file unfortunately.
From line 1173

// Queue frontend scripts conditionally
		if ( $ajax_cart_en )
			wp_enqueue_script( 'wc-add-to-cart', $frontend_script_path . 'add-to-cart' . $suffix . '.js', array( 'jquery' ), $this->version, true );

		if ( is_cart() )
			wp_enqueue_script( 'wc-cart', $frontend_script_path . 'cart' . $suffix . '.js', array( 'jquery' ), $this->version, true );

		if ( is_checkout() ) {
			if ( $chosen_en ) {
				wp_enqueue_script( 'wc-chosen', $frontend_script_path . 'chosen-frontend' . $suffix . '.js', array( 'chosen' ), $this->version, true );
				wp_enqueue_style( 'woocommerce_chosen_styles', $this->plugin_url() . '/assets/css/chosen.css' );
			}

			wp_enqueue_script( 'wc-checkout', $frontend_script_path . 'checkout' . $suffix . '.js', array( 'jquery', 'woocommerce' ), $this->version, true );
		}

		if ( $lightbox_en && ( is_product() || ( ! empty( $post->post_content ) && strstr( $post->post_content, '[product_page' ) ) ) ) {
			wp_enqueue_script( 'prettyPhoto', $this->plugin_url() . '/assets/js/prettyPhoto/jquery.prettyPhoto' . $suffix . '.js', array( 'jquery' ), '3.1.5', true );
			wp_enqueue_script( 'prettyPhoto-init', $this->plugin_url() . '/assets/js/prettyPhoto/jquery.prettyPhoto.init' . $suffix . '.js', array( 'jquery' ), $this->version, true );
			wp_enqueue_style( 'woocommerce_prettyPhoto_css', $this->plugin_url() . '/assets/css/prettyPhoto.css' );
		}

		if ( is_product() )
			wp_enqueue_script( 'wc-single-product' );

Changed it to this to get the ajax shipping calculation to work:

// Queue frontend scripts conditionally
		if ( $ajax_cart_en ){
			wp_enqueue_script( 'wc-add-to-cart', $frontend_script_path . 'add-to-cart' . $suffix . '.js', array( 'jquery' ), $this->version, true );
        }
		if ( is_cart() ){
			wp_enqueue_script( 'wc-cart', $frontend_script_path . 'cart' . $suffix . '.js', array( 'jquery' ), $this->version, true );
        }
		if ( is_checkout() ) {
			if ( $chosen_en ) {
				wp_enqueue_script( 'wc-chosen', $frontend_script_path . 'chosen-frontend' . $suffix . '.js', array( 'chosen' ), $this->version, true );
				wp_enqueue_style( 'woocommerce_chosen_styles', $this->plugin_url() . '/assets/css/chosen.css' );
			}

			wp_enqueue_script( 'wc-checkout', $frontend_script_path . 'checkout' . $suffix . '.js', array( 'jquery', 'woocommerce' ), $this->version, true );
		}

		if ( $lightbox_en && ( is_product() || ( ! empty( $post->post_content ) && strstr( $post->post_content, '[product_page' ) ) ) ) {
			wp_enqueue_script( 'prettyPhoto', $this->plugin_url() . '/assets/js/prettyPhoto/jquery.prettyPhoto' . $suffix . '.js', array( 'jquery' ), '3.1.5', true );
			wp_enqueue_script( 'prettyPhoto-init', $this->plugin_url() . '/assets/js/prettyPhoto/jquery.prettyPhoto.init' . $suffix . '.js', array( 'jquery' ), $this->version, true );
			wp_enqueue_style( 'woocommerce_prettyPhoto_css', $this->plugin_url() . '/assets/css/prettyPhoto.css' );
		}

		if ( is_product() ){
			wp_enqueue_script( 'wc-single-product' );
        }

Is there a better way to do this? It’s bad practice obviously to do this…

http://ww.wp.xz.cn/plugins/woocommerce/