Spread syntax requires ...iterable[Symbol.iterator] to be a function

hello
im trying to add heic file in my next js 14 app with formData on my windows machine using this code

```
const data = await req.formData();
const kk = data.get("kk") as File;
const kk_buffer = kk && kk instanceof Blob ? await kk.arrayBuffer() : undefined;
if (kk.name.split(".")[1] === "heic" || kk.name.split(".")[1] === "heif") {
const kk_converted = await convert({
buffer: kk_buffer,
format: "JPEG",
});
console.log("🚀 ~ kk_converted:", kk_converted)
}
```

and i got error like this: Spread syntax requires ...iterable[Symbol.iterator] to be a function

is this because im upload from my windows machine?