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Asked: 2026-06-08T16:33:51+00:00

I am building the analogClock (class AnalogClock : public QWidget) example application under qtbase/example/widgets,

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I am building the analogClock (class AnalogClock : public QWidget) example application under qtbase/example/widgets, but with following undefined symbol: _ZTV11AnalogClock…

And I objdump -t analogClock.exe to try find who reference this symbol, but nothing found…

MORE INFO:
As long as the class inherit from QWidget, and construct a object, then there will be a undefined symbol _ZTVXYYY, where X is the length of the class name, YYY is the class name.

so could you someone help point out what’s this _ZTVXYYY symbol ?
And how to avoid this situation ?

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1 Answer

  1. Editorial Team

    It’s caused by the Makefile is not generated by the correct qmake tool.

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