Thanks for the guide.
I did that, now I get some linker messages when compiling:
Projekt kompilieren, Modus: Release_Linux_64_gk2, Ziel: /media/rudi/Ablage/Daten_Privat/Z_Programmieren/Pascal/QuellenSammlung/Google/Google_Translate/qet_translate/qet_translate_01/x86_64-linux/release/qet_translate: Exit code 1, Fehler: 1, Warnungen: 32
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTreeWidgetItem::setSelected(bool)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTableWidgetItem::isSelected() const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTreeWidgetItem::setFirstColumnSpanned(bool)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QPixmap::fill(QPaintDevice const*, int, int)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QPainterPath::addRoundRect(double, double, double, double, int)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTableWidgetItem::setSelected(bool)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTreeWidgetItem::isFirstColumnSpanned() const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QListWidgetItem::isSelected() const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QGradient::~QGradient()@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QColor::lighter(int) const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTreeWidgetItem::isSelected() const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `qt_version_tag@Qt_5.15'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QPainterPath::addRoundRect(QRectF const&, int)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QtPrivate::argToQString(QStringView, unsigned long, QtPrivate::ArgBase const**)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QPixmap::grabWidget(QObject*, int, int, int, int)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QPainterPath::addRoundRect(double, double, double, double, int, int)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QFile::symLinkTarget() const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QPainter::drawRoundRect(QRect const&, int, int)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QRadialGradient::~QRadialGradient()@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QString::split(QChar, QFlags<Qt::SplitBehaviorFlags>, Qt::CaseSensitivity) const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QJsonDocument::swap(QJsonDocument&;)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QFileInfo::symLinkTarget() const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QConicalGradient::~QConicalGradient()@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QListWidgetItem::setSelected(bool)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QFile::symLinkTarget(QString const&;)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QColor::darker(int) const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QPainter::drawRoundRect(int, int, int, int, int, int)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTreeWidgetItem::isExpanded() const@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QSslKey::operator=(QSslKey&&;)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QLinearGradient::~QLinearGradient()@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QJsonValue::swap(QJsonValue&;)@Qt_5'
Warning: linker: /usr/bin/ld: /lib/x86_64-linux-gnu//libQt5Pas.so: undefined reference to `QTreeWidgetItem::setExpanded(bool)@Qt_5'
qet_translate.ppr(22,1) Error: Error while linking
By 'Rebuild Typhon IDE' do you mean as shown in the picture?
I added QT5 to the widget settings, does anything else need to be changed?