ios – The way to remedy error (OS Error: No such file or listing, errno = 2) studying file in flutter

I not too long ago began programming cell purposes with flutter. I’ve an issue with studying a file. In apply, whereas the app is working I write a string to a textual content file (and I also can learn it accurately). My want is to learn from this file each time the app is accessed; subsequently, within the initState () operate I name the readContent () operate however I get the next message: “FileSystemException: Can’t open file, path=”/var/cell/Containers/Information/Utility/F8A5A202-45C9-47F6-93C9-E4BAE2AF3C7E/Paperwork/counter.txt” (OS Error: No such file or listing, errno = 2)”. Might you assist me?

That is my code:

Future<String> get _localPath async {
    last listing = await getApplicationDocumentsDirectory();
    print("listing path: "+listing.path);
    return listing.path;
  }

  Future<io.File> get _localFile async {
    last path = await _localPath;
    return io.File('$path/counter.txt');
  }

  String datas = "";

  //questa funzione viene richiamata all'avvio della schermata e serve per leggere il valore del flag checkSendingReport dal file
  @override
  void initState() {
    tremendous.initState();
    readContent().then((String worth) {
      print(worth);
      setState(() {
        String knowledge = worth;

        Record data_file_split = knowledge.break up("#");
        checkSendingReport = data_file_split[1];
        check_sending_report = data_file_split[1];
      });
    });
  }

  //Questa funzione serve per leggere il file locale scritto in precenza
  Future<String> readContent() async {
    strive {
      last file = await _localFile;

      // Learn the file
      String contents = await file.readAsString();
      //Returning the contents of the file
      return contents;

    } catch (e) {
      // If encountering an error, return
      return 'Error! '+e.toString();
    }
  }

  //questa funzione serve per scrivere il file locale
  Future<io.File> writeContent(datetime) async {
    last file = await _localFile;

    //Setto a real la variabile flag check_sending_report
    check_sending_report = true;

    //Creo la stringa da inserire nel file: composta da datetime#flag
    String data_file = datetime + "#" + check_sending_report.toString();

    // Write the file
    return file.writeAsString(data_file);
  }