Qt5 undefined 引用 'QDeclarativeDebuggingEnabler：：QDeclarativeDebuggingEnabler()'

Question

突然有了这个问题…

classitem.o: In function `__static_initialization_and_destruction_0':
/../../Qt/5.4/gcc_64/include/QtDeclarative/qdeclarativedebug.h:50: undefined reference to `QDeclarativeDebuggingEnabler::QDeclarativeDebuggingEnabler()'
collect2: error: ld returned 1 exit status
make: *** [MedJournal] Error 1
09:29:05: The process "/usr/bin/make" exited with code 2.

从对象中剥离了QObject类，但仍然得到相同的错误。

Answer 1

请记住，在启用调试时，QtQuick1和QtQuick2是不同的:

QtQuick1

#include <QtDeclarative/qdeclarativedebug.h>
QDeclarativeDebuggingEnabler enabler;

QtQuick2

#include <QQmlDebuggingEnabler>
QQmlDebuggingEnabler enabler;

因为你正在使用Qt5.4和QtQuick2是围绕自Qt5我认为，这可能是问题。

Answer 2

事实证明，由于某种原因，这一行引起了所有的麻烦:

#include <QtDeclarative/QDeclarativeView>