GtkDialog mapped without a transient parent. This is discouraged.

[suslucoder]

Im on ubuntu 18.04. Im trying to read my json files. When i run it, i got this error. Here is my code

int main(int argc, char *argv[])
{

    QApplication a(argc, argv);
    QStringList fileNamesJson;
    fileNamesJson = QFileDialog::getOpenFileNames(nullptr,
                                                  ("Uçuş Planı Seçiniz"), "/home/ilknur/yi/UcusPlani/", ("Uçuş Planı(*.upd *.json)"));

    for(auto xfile : fileNamesJson)
    {
        QFile file(xfile);
        file.open(QIODevice::ReadOnly | QIODevice::Text);
        QByteArray data = file.readAll();


        QJsonParseError error;
        QJsonDocument doc = QJsonDocument::fromJson(data, &error);
        if(doc.isNull())
        {
            qDebug() << "parse failed";
        }

        QJsonObject root = doc.object();
        QJsonArray planArray = root.value("ucus plani").toArray();
//    for(const auto &value : planArray )
//    {
//        QJsonObject object = value.toObject();
//        qDebug()<< value;

//   }

       //for(int i=0; i< planArray.size(); i++)

  for(const auto &value : planArray) {
      double enlem = value.toObject().value("enl").toDouble();
      double boylam = value.toObject().value("byl").toDouble();
      int grv = value.toObject().value("grv").toDouble();
      double irtifa = value.toObject().value("irtifa").toDouble();
      int no= value.toObject().value("no").toDouble();
      int snrk = value.toObject().value("snrk").toDouble();
     double yaricap = value.toObject().value("yrcp").toDouble();

    int bslngc = value.toObject().value("bslngc").toDouble();
    int dgsm =  value.toObject().value("dgsm").toDouble();
    int rtno =  value.toObject().value("rtno").toDouble();
    int tplm =  value.toObject().value("tplm").toDouble();

  qDebug() << "bslngc" << bslngc;
  qDebug() << "dgsm" << dgsm;
  qDebug() << "rtno" << rtno;
  qDebug() << "tplm" << tplm;

  qDebug () << "enlem:"<< enlem;
  qDebug () << "boylam" << boylam;
  qDebug () << "grv:" << grv;
  qDebug () << "irtifa:" << irtifa;
  qDebug () << "no:" << no;
  qDebug () << "snrk:" << snrk;
  qDebug () << "yaricap:" << yaricap;

  }
}
}

[Christian Ehrlicher]

See https://bugreports.qt.io/browse/QTBUG-73815

[mrjj]

Hi
I think it comes from the dialog - having no parent.

QFileDialog::getOpenFileNames(nullptr <<< no parent

So not much to do about it since you seems to have no window that could be parent :)

Ahh Mr Ehrlicher even has a bug report about it :)