inherit class react in razor page

i have a razor page and i want to render a class React.Component inside it. If i render a single page it works but if i import in the App class a Child component throw me the following error:

Warning: React.createElement: type is invalid — expected a string
(for built-in components) or a class/function (for composite
components) but got: object. You likely forgot to export your
component from the file it’s defined in, or you might have mixed up
default and named imports.

Uncaught Invariant Violation: Element type is invalid: expected a
string (for built-in components) or a class/function (for composite
components) but got: object.

What did i miss to import Child correctly?Or i have to change React.createElement in order to have a class that is modularized?

App.jsx:

import { Child } from './Components/Child';

class App extends React.Component{

    componentDidMount() {
       
    }
    
    render() {
        console.log(this.props)
       
        const list = this.props.Property1;
        return (
            <div>
                <ul>
                    {list.map(item => (
                        <li key={item.name}>{item.name}</li>
                    ))}
                </ul>

                <Child></Child>
            </div>

            );
    }
     
}

Child.jsx

 export class Child extends React.Component {

        componentDidMount() {

        }

        render() {

            return (
                <div>
                    Sono il figlio del component padre  :  {this.props.data}
                </div>

            );
        }

    }

Index.cshtml:

@using Newtonsoft.Json;
@using SportData.Web.Models;
@using System.Web.Optimization;


@model SportContainer



<div id="App">
</div>

<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.8.0/umd/react.development.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.8.0/umd/react-dom.development.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/remarkable/1.7.1/remarkable.min.js"></script>


<script src="@Url.Content("~/js/app.jsx")" type="module" ></script>
<script src="@Url.Content("~/js/Components/Child.jsx")"></script>
<script>
    var modelObject = @Html.Raw(Json.Serialize(Model.sportList));
    ReactDOM.render(
        React.createElement(App, { Property1: modelObject }),
        document.getElementById("App")
    );
    
</script>