Uncaught ReferenceError: createFFmpegCore is not defined

As you can see the

```
import React from "react";
import { createFFmpeg, fetchFile } from "@ffmpeg/ffmpeg";

const ffmpeg = createFFmpeg({
log: true,
});

function App() {
const [ready, setReady] = React.useState(false);

const load = async () => {
await ffmpeg.load();
setReady(true);
};

React.useEffect(() => {
load();
}, []);

.
.
.
```

I got a Bad memory error too!
How to fix this?