问题
I'm getting the error
QAction: No such file or directory
when I try to compile a project for plugin (C++ Library template). Weird, because I have a project for my app which also includes this header and there is no error. What might cause this?
回答1:
Make sure that you have the right include paths set up.
If you use QMake the *.pro should contain these settings if you want to include files from QtGui. They should be set by default but some templates may not set them.
CONFIG += qt
QT += gui
If you use another build system then make sure that you either use
#include <QtGui/QAction>
or you add $QTDIR/include/QtGui and not just $QTDIR/include to your include path
回答2:
For me I had some stale moc_ and ui_ files left over from compiling under a different version and configuration of Qt, so removing them solved the problem for me.
rm moc_* ui_* *.o
来源：https://stackoverflow.com/questions/8274514/qaction-no-such-file-or-directory