options.cpp: In member function 'void Options::saveCookies(const QList<QNetworkCookie>&)':
options.cpp:110:17: error: variable 'QDataStream ds' has initializer but incomplete type
   QDataStream ds(&ba, QIODevice::WriteOnly);
                 ^
options.cpp: In member function 'QList<QNetworkCookie> Options::loadCookies()':
options.cpp:124:18: error: variable 'QDataStream ds' has initializer but incomplete type
    QDataStream ds(&ba, QIODevice::ReadOnly);
                  ^
g++ -c -pipe -pipe -Wall -g -O2 -O2 -std=gnu++11 -Wall -W -D_REENTRANT -fPIC -DHAVE_QT5 -DQT_NO_DEBUG -DQT_PLUGIN -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_XML_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -I. -I.ui -I../../include -I. -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtWidgets -isystem /usr/include/qt5/QtGui -isystem /usr/include/qt5/QtXml -isystem /usr/include/qt5/QtNetwork -isystem /usr/include/qt5/QtCore -I.moc -I.ui -I/usr/lib64/qt5/mkspecs/linux-g++ -o .obj/moc_uploaddialog.o .moc/moc_uploaddialog.cpp
make: *** [.obj/options.o] Error 1