undefined reference to vtable for qt

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undefined reference to vtable for qt

What am I doing wrong? @class MyClass : public QObject Q_OBJECT public: MyClass(const QString& text, QObject* parent = 0) :m_text(text), ... , 當我編譯QT 出現Undefined reference to 'vtable xxxxxxxxxx' 問題是我的virtual function都有實做呀????? 本人解決方法好像是.pro.,In the Qt tutorial about writing a Unit Test we can find the following info: ... we also need to include the generated moc file to make Qt's introspection work. , 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 b, 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 ..., 在QT中定義了一個執行緒類,繼承自QThread, 在類中未加Q_OBJECT 時編譯正常,加入後報錯如下:. undefined reference to `vtable for ..., 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 ..., 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)., 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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undefined reference to vtable for qt 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

Orz! 編譯QT 出現Undefined reference to 'vtable xxxxxxxxxx' [Qt ...

當我編譯QT 出現Undefined reference to 'vtable xxxxxxxxxx' 問題是我的virtual function都有實做呀????? 本人解決方法好像是.pro.

https://eric1300460.pixnet.net

qt - undefined reference to `vtable for myObj' in qt console ...

In the Qt tutorial about writing a Unit Test we can find the following info: ... we also need to include the generated moc file to make Qt's introspection work.

https://stackoverflow.com

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 ...

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 出現“undefined reference to `vtable for” - IT閱讀

在QT中定義了一個執行緒類,繼承自QThread, 在類中未加Q_OBJECT 時編譯正常,加入後報錯如下:. undefined reference to `vtable for ...

https://www.itread01.com

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

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

“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 ...

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