Flutter file_picker package giving null value for all file details - flutter

Question

I've copied the same code from file_picker package docs, but it keeps giving me a null value for all file details, here is the code I've copied
FilePickerResult result = await FilePicker.platform.pickFiles();
if(result != null) {
PlatformFile file = result.files.first;
print(file.name);
print(file.bytes);
print(file.size);
print(file.extension);
print(file.path);
}
The file name, bytes, size, extension and path are all giving a null value. Anyone know what is the reason for that ?
I've tried to upload a pdf, png, jpg, doc and get the same null value for all of them.

Answer 1

I'm using the latest version of this:
https://pub.dev/packages/file_picker
void _openFileExplorer() async {
File _pickedFile;
FilePickerResult _filePickerResult;
setState(() {
_isLoading = true;
});
try {
_filePickerResult = await FilePicker.platform.pickFiles(
type: FileType.any,
allowedExtensions: (_extension?.isNotEmpty ?? false)
? _extension?.replaceAll(' ', '')?.split(',')
: null);
} on PlatformException catch (e) {
print("Unsupported operation" + e.toString());
}
if (_filePickerResult != null) {
setState(() {
_pickedFile = File(_filePickerResult.files.single.path);
});
}
if (!mounted) return;
{
Flushbar(
showProgressIndicator: true,
progressIndicatorBackgroundColor: Colors.blueGrey,
title: 'Status:',
message: 'File loaded: $_pickedFile',
duration: Duration(seconds: 3),
backgroundColor: Colors.green,
)
..show(context);
}
setState(() {
_isLoading = false;
});
}