customwidgets.cpp: In member function ‘virtual void Gui::AccelLineEdit::keyPressEvent(QKeyEvent*)’:
customwidgets.cpp:287:38: error: no match for ‘operator+’ (operand types are ‘Qt::Modifier’ and ‘QKeySequence’)
QKeySequence key(Qt::CTRL+key);
~~~~~~~~^~~~
In file included from /usr/include/x86_64-linux-gnu/qt5/QtGui/QtGui:38:0,
from customwidgets.cpp:24:
g++ (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0