qt undefined reference to vtable for

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qt undefined reference to vtable for

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., 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 ..., Warning: Do not do this if you already have a .pro file - you'll lose it! In order to automatically ensure that all moc cpp files are generated, you ..., 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 ..., 其實這是因為你的virtual function忘了實做。 它錯誤訊息會跟你講是在哪一個CLASS忘了實做。 例如: class c1 有2個virtual function 然後c2 繼承c1.

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qt undefined reference to vtable for 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 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 ...

Warning: Do not do this if you already have a .pro file - you'll lose it! In order to automatically ensure that all moc cpp files are generated, you ...

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 ...

https://lizardo.wordpress.com

當編譯出現Undefined reference to 'vtable xxxxxxxxxx' 解決 ...

其實這是因為你的virtual function忘了實做。 它錯誤訊息會跟你講是在哪一個CLASS忘了實做。 例如: class c1 有2個virtual function 然後c2 繼承c1.

https://eric1300460.pixnet.net