Qt Creator无法构建任何东西

Question

I have Qt Creator, from the About dialog:

Qt Creator 3.6.1
Based on Qt 5.6.0 (GCC 4.9.1 20140922 (Red Hat 4.9.1-10), 64 bit)

Built on Mar 14 2016 09:35:54

From revision 5587df79a1

I have been working for months on a number of projects which until today compiled without problems, I am using Qt 5.6.0, sometime this morning an error has occurred. At first glance I thought it was something in my project, however having searched and compared versions in Git I could not find any problems. I then tried to build other projects and the same errors came up. I then sought help in-house from another Qt developer we tried building one of the examples 'terminal' this also now shows the same errors, for some unexplained reason I cannot build any projects on my development system.

I'm using Red Hat Enterprise Linux Workstation release 7.2 (Maipo)

I did a RedHat system update earlier today, however I had compiled and build projects post this update, then all of a sudden something has happened that stops the build process, typical errors displayed when trying to build:

In file included from /home/fcs/Qt/5.6/gcc_64/include/QtCore/qcoreapplication.h:40:0,
from /home/fcs/Qt/5.6/gcc_64/include/QtWidgets/qapplication.h:37,
from /home/fcs/Qt/5.6/gcc_64/include/QtWidgets/QApplication:1,
from ../terminal/main.cpp:35:
/home/fcs/Qt/5.6/gcc_64/include/QtCore/qobject.h:90:17: error: field 'children' has incomplete type
QObjectList children;
^
/home/fcs/Qt/5.6/gcc_64/include/QtCore/qobject.h: In member function 'const QObjectList& QObject::children() const':
/home/fcs/Qt/5.6/gcc_64/include/QtCore/qobject.h:190:64: error: 'class QObjectData' has no member named 'children'
inline const QObjectList &children() const { return d_ptr->children; }

Is there a clean up or built in integrity check/repair tool I can run that will fix whatever is wrong?

I am currently running the Qt Maintenance tool, hoping that this will find and resolve any issues, it is presently downloading 1.2GB of updates.

To be very clear, this issue is not related to my project, the behaviour does the same with a stock project from the Qt examples. So something is now broken and I would like to know how to fix it.

Answer 1

在运行Qt维护工具并允许它完成所有软件的更新之后，现在所有内容都可以再次使用，除了与系统更新之一可能发生冲突之外，我不知道是什么导致了它失败。