Expected behavior

I just installed plugins from git 'mdb-file-upload'

my app.js looks like this

import * as mdb from 'mdb-ui-kit';
import FileUpload from "mdb-file-upload/src/js/file-upload";
import 'mdb-file-upload/css/file-upload.min.css';

I try to use basic example for file-upload plugin with this basic code

                                    <div class="file-upload-wrapper">
                                        <input
                                                type="file"
                                                id="input-file-now"
                                                class="file-upload-input"
                                                data-mdb-file-upload="file-upload"
                                        />
                                    </div>

Actual behavior

After adding document, Webpack is correctly loaded in browser:

I'm unable to add file to input as error in js :

Resources (screenshots, code snippets etc.)