error: invalid use of incomplete type 'class Ui::AddDialog' error: forward declaration of 'class Ui::AddDialog' 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 #ifndef ADDDIALOG_H#define ADDDIALOG_H#include <QDialog>namespaceUi {classAddDialog; }classAddDialog :...
declaration of'class QCheckBox'../dialog/dialog.cpp:12:45: error: invalid use of incomplete type'class QPushButton'In file included from /opt/Qt5.0.1/5.0.1/gcc/include/QtWidgets/QDialog:1:0, from ../dialog/dialog.h:4, from ../dialog/dialog.cpp:1:/opt/Qt5.0.1/5.0.1/gcc/include/...
optionsdialog.cpp:229:129: error: invalid use of incompletetype‘class QAction’ 229|his shortcut is already usedfor\"%1\"").arg(actions[c]->text().remove('&')));| ^~In file included from /usr/include/x86_64-linux-gnu/qt5/QtWidgets/qdialog.h:44,from /usr/include/x86_64-linux...