Why does it show me this Error when saving backup, in Qt and sqlite3

[lincoln]

I have the following code, I want to save a backup from Qt using the sqlite .backup command, but it shows me this error, and the file is not created.

QObject::connect(ui->actionHacer_backup, &QAction::triggered, this, [&](){
      QProcess process;
      QStringList argv{};
      QString app{"sqlite3.exe"};
      auto db = qApp->applicationDirPath().append("/xxxdatabase/xdatabase.db");
      auto file_savePath = QFileDialog::getSaveFileName(this, "save a backup",QDir::rootPath(),
                                                        "Archivo backup (*.bak)");
     
      if(file_savePath.isEmpty())
        return;

      argv << db << ".backup" << file_savePath;
      if(process.startDetached(app, argv)){
          qInfo() << "Backup creado!!";
        }



    });

Any recommendation would be good.

[Christian Ehrlicher]

Because according to so it's sqlite3 test.db ".backup backup.db" and not sqlite3 test.db .backup backup.db

[lincoln]

@Christian-Ehrlicher Thanks