Can't create dir file

[ngoc-phoenix]

I just do an example as below:

void initState() {
super.initState();
JSONBridge jsonBridge = JSONBridge()..init(fileName: 'multilingual');
jsonBridge.write({
'name': 'John Doe',
'age': 25,
'address': {
'street': 'Main Street',
'city': 'New York',
'country': 'USA'
}
});
}
But when build with iOS version, I get the error that can't create dir file as the screenshot below

Do you have any idea about it?