QT += serialbus serialport widgets requires(qtConfig(combobox)) TARGET = modbusslave TEMPLATE = app CONFIG += c++11 SOURCES += main.cpp\ mainwindow.cpp \ settingsdialog.cpp HEADERS += mainwindow.h settingsdialog.h FORMS += mainwindow.ui settingsdialog.ui RESOURCES += slave.qrc target.path = $$[QT_INSTALL_EXAMPLES]/serialbus/modbus/slave INSTALLS += target