I want to use Javascript Module is "ffmetadata" (Link: https://www.npmjs.com/package/ffmetadata).

I was installed via npm.

In my javascript:

odoo.define('my_module.js_name', function(require) {
     "use strict";
     var ffmetadata = require("ffmetadata");
});

But when i load page and check log, this message will appear:

warning: Some modules could not be started
Missing dependencies: ["ffmetadata"]
Non loaded modules: ["my_module.js_name"]
Debug: Object {my_module.js_name: Object}

How can i fix that ?

Sorry for my bad english, thanks.