Unsupported operation when upload file on flutter web

[1Mahmoud12]

why when upload file on flutter web show me that error

Error: Unsupported operation: Platform._operatingSystem

`
static Future<Either<Failure, String>> uploadImages({required File file}) async {

await Constants.firebaseStorage
    .ref()
    .child('${Constants.storageImages}/${Uri.file(file.path).pathSegments.last}')
    .putFile(file, SettableMetadata(contentType: 'image/jpeg'))
    .then((p0) async {
  await p0.ref.getDownloadURL().then((value) {
    return Right(value);
  });
});
return Left(ServerFailure('Something went wrong'));

}
`