qt5 undefined reference to vtable

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qt5 undefined reference to vtable

What am I doing wrong? @class MyClass : public QObject Q_OBJECT public: MyClass(const QString& text, QObject* parent = 0) :m_text(text), ... , Any time you add a new call to the Q_OBJECT macro, you need to run qmake again. The vtables issue you're referring to is directly related to ..., Since QWidget has a virtual destructor, the compiler needs a vtable for your class. But your class doesn't have any virtual functions, so it didn't build one for your Communicate class. Add a virtual ~Communicate() }; to your class, and all will , 如果得到类似于“undefined reference to vtable for LcdNumber”的编译错误(if you get compiler errors along the lines of "undefined reference to ..., 如果得到类似于“undefined reference to vtable for LcdNumber”的编译错误(if you ... 某一个类中如果加入Q_OBJECT后,则link时提示:undefined reference to ... QT5交叉编译出现"undefined reference to `qt_version_tag'"的解决方法., Absence of a vtable is usually a symptom of failing to include the output of moc in the linker arguments. Make sure that you ran moc on your ...,WIN7 + MingW32 + Qt5.7 P1 I build a custom class by Qt Creator. New File Or Project->choose Qt Widgets Application->->set name and son ... , But that is faulty for QT Creator. In result the error "Undefined reference to vtable" has occured. It seems to be: QT detects header for moc compilation only in the HEADERS +=... section (or variable)., Description of Problem, Request, or Question When I add Q_OBJECT to my class declaration header, I get undefined reference to vtable for ..., If you ever come across an error like this when compiling C++ code with Qt derived class definitions: g++ -Wl,--no-undefined -o test test.o ...

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qt5 undefined reference to vtable 相關參考資料
Error: undefined reference to `vtable for MyClass' | Qt Forum

What am I doing wrong? @class MyClass : public QObject Q_OBJECT public: MyClass(const QString& text, QObject* parent = 0) :m_text(text), ...

https://forum.qt.io

Qt Linker Error: "undefined reference to vtable" - Stack Overflow

Any time you add a new call to the Q_OBJECT macro, you need to run qmake again. The vtables issue you're referring to is directly related to ...

https://stackoverflow.com

Qt undefined reference to vtable - Stack Overflow

Since QWidget has a virtual destructor, the compiler needs a vtable for your class. But your class doesn't have any virtual functions, so it didn't build one for your Communicate class. Add a...

https://stackoverflow.com

Qt 出现“undefined reference to `vtable for”原因总结_reference ...

如果得到类似于“undefined reference to vtable for LcdNumber”的编译错误(if you get compiler errors along the lines of "undefined reference to ...

https://blog.csdn.net

Qt 出现“undefined reference to `vtable for”原因总结_破茧 ...

如果得到类似于“undefined reference to vtable for LcdNumber”的编译错误(if you ... 某一个类中如果加入Q_OBJECT后,则link时提示:undefined reference to ... QT5交叉编译出现"undefined reference to `qt_version_tag'"的解决方法.

https://blog.csdn.net

Qt: Undefined reference to 'vtable' - Stack Overflow

Absence of a vtable is usually a symptom of failing to include the output of moc in the linker arguments. Make sure that you ran moc on your ...

https://stackoverflow.com

SOS:undefined reference to `vtable for<class name> | Qt Forum

WIN7 + MingW32 + Qt5.7 P1 I build a custom class by Qt Creator. New File Or Project->choose Qt Widgets Application->->set name and son ...

https://forum.qt.io

Undefined reference to vtable. Trying to compile a Qt project ...

But that is faulty for QT Creator. In result the error "Undefined reference to vtable" has occured. It seems to be: QT detects header for moc compilation only in the HEADERS +=... section (...

https://stackoverflow.com

using Q_OBJECT gives "undefined reference to vtable for plop ...

Description of Problem, Request, or Question When I add Q_OBJECT to my class declaration header, I get undefined reference to vtable for ...

https://github.com

“undefined reference to `vtable for …' errors” in Qt derived ...

If you ever come across an error like this when compiling C++ code with Qt derived class definitions: g++ -Wl,--no-undefined -o test test.o ...

https://lizardo.wordpress.com