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Error Undefined Reference To Vtable For Qt


share|improve this answer answered Jul 13 '10 at 3:18 David 1,89232028 add a comment| up vote 2 down vote Signals must not have an implementation (This wil be generated by Qt). If you are already registered, please login here. So when you have a new header that defines a QObject-derived class, you need to rerun qmake so that it updates your makefiles to run moc on the new header and virtual void deinit() {;} etc... http://smartphpstatistics.com/undefined-reference/undefined-reference-to-vtable-for-destructor.html

Saves you some time there. high_flyer, the StelModule class is defined in StelModule.hpp. How do you say "root beer"? Recommended off-line reading: The Foundations of Qt Development (ISBN: 1-59059-831-8) Reply With Quote 25th April 2011,05:29 #8 OnlyK View Profile View Forum Posts View Blog Entries View Articles Beginner Join Date Visit Website

Error Undefined Reference To Vtable Q Object

Why does the material for space elevators have to be really strong? This method is the one called automatically by the StelModuleMgr //! virtual void init() = 0; //!

asked 5 years ago viewed 32739 times active 3 years ago Linked 31 Qt Linker Error: “undefined reference to vtable” 0 Q_OBJECT in QT (undefined reference to vtable xxx) -1 Undefined After running qMake once more, life was good again. –Alex Hendren Nov 6 '13 at 7:32 | show 2 more comments up vote 17 down vote If you want to define Over 90 percent of questions asked here gets answered. Undefined Reference To Vtable For Class I tried rebuild but that didn't work. –Deepak Jul 5 '13 at 18:08 @michael Thank you.

Each header file should be listed in the HEADERS variable of the .pro file. Qobject Undefined Reference To Vtable For You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. How to make files protected? Lets make some things clear: the Q_OBJECT macro is only needed (and moc'ing), if you are using signals and slots.

The easiest way to force qmake to be run is to make some insignificant changes to the project file to update its timestamp, like adding and then removing some white space. Undefined Reference To Vtable Destructor C++ Deinitialize all openGL texture in this method. more hot questions lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science Other Reply With Quote + Reply to Thread Quick Navigation Qt Programming Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums Qt Newbie Qt Programming Qwt Qt

Qobject Undefined Reference To Vtable For

I tested this by commenting out the GpsLocator class and its corresponding implementation in the CPP file. https://forum.qt.io/topic/11994/solved-error-undefined-reference-to-vtable-for-myclass c++ qt linker-error vtable share|improve this question asked Jan 23 '11 at 14:24 Donotalo 7,147145993 marked as duplicate by djf, Rubens, Phil Hannent, tjameson, John Doyle Jul 13 '13 at 19:03 Error Undefined Reference To Vtable Q Object share|improve this answer answered Oct 8 '10 at 14:17 Pete 211 add a comment| up vote 2 down vote For me, I noticed from build logs that moc wasn't called. Q_object Undefined Reference To Vtable share|improve this answer answered Sep 6 '10 at 10:32 Michael 1,6651323 12 Within QT Creator use run qmake from the Build menu. –David Hilbert Jul 26 '12 at 7:58

And indeed it appears that moc is re-run for every build without regard for whether the input files have actually changed. http://smartphpstatistics.com/undefined-reference/undefined-reference-to-vtable-qt-qobject.html Is it appropriate to tell my coworker my mom passed away? And this function's implementation is written automatically by moc when it processes the header. Edit: I see you are using Creator. Undefined Reference To Vtable For Constructor

Thank you. –iizno Mar 25 '13 at 12:25 add a comment| Not the answer you're looking for? Move this to header file. current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. have a peek here Deinitialize all openGL texture in this method.

qmake then doesn't believe it needs to run moc and you end up with vtable errors. Undefined Reference To Vtable For Mainwindow' So make sure your use of the Q_OBJECT macro fulfills the following requirements: Make sure the Q_OBJECT macro is present in the definition of all QObject-derived classes Make sure you define include(qmlapplicationviewer/qmlapplicationviewer.pri) qtcAddDeployment() HEADERS += \ timecontrol.h \ scorecontrol.h \ Retry.h \ myapp.h \ myapplication.h OTHER_FILES += \ qtc_packaging/debian_fremantle/rules \ qtc_packaging/debian_fremantle/README \ qtc_packaging/debian_fremantle/copyright \ qtc_packaging/debian_fremantle/control \ qtc_packaging/debian_fremantle/compat \ qtc_packaging/debian_fremantle/changelog compat \ qtc_packaging/debian_fremantle/changelog

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Does the recent news of "ten times more galaxies" imply that there is correspondingly less dark matter? Initialize itself. //! You will need to re-run qmake of course so that the appropriate rule to run moc gets added to the Makefile. Undefined Reference To Vtable For Boost The header file should be "wrapped" (e.g., with #ifndef) to avoid multiple inclusion.

Powered by vBulletin Version 4.1.9 Copyright ©2000 - 2016, Jelsoft Enterprises Ltd., © 2006–2010 Qt Centre - The Ultimate Qt Community site Nokia and its respective logos are trademarks of Nokia Also, the presence of the Q_OBJECT macro in the GpsLocatorStelPluginInterface class does not seem to generate an error. Is there any alternative to the "sed -i" command in Solaris? http://smartphpstatistics.com/undefined-reference/undefined-reference-to-vtable-for-constructor.html As far as I know Qt libraries were included in the latest SDK2.1 for PlayBook but (surprise!) there is not qmake or moc or any other Qt tools.

This is an issue that often causes headaches for inexperienced Qt developers. Did Sputnik 1 have attitude authority? If base class (QObject in this case) has virtual destructor, then destructors in all derived classes are automatically virtual. When I developed Qt app I cloned it from their repo and built Qt on my local dev machine.

I declare a prototype nested class in header file, declaration and definition in source file. more hot questions lang-cpp about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science Other If those answers do not fully address your question, please ask a new question. To use all features of this page, you should consider registering.

Destructor GpsLocator::~GpsLocator() { } To copy to clipboard, switch view to plain text mode Can anyone clearify what I need to do to get rid of this error please? I have seen references to including a .moc file in the .cpp file but there seem to be no .moc files being generated. Not the answer you're looking for? About qt tools read in documentation.

Does this mean cmake is not running the moc as it should? –James Hirschorn May 30 at 17:39 1 @JamesHirschorn You'd think that should be sufficient, yes. Therefore I would not put Q_OBJECT macro in the interface since this will force all implementing class to use it- which is not always what you want. Showing results for  Search instead for  Do you mean  All New Topics | All New Posts Device Support Forums PRIV™ PRIV™ BlackBerry® 10 Devices BlackBerry® Leap BlackBerry® Classic BlackBerry® Passport BlackBerry® Reply With Quote 12th January 2011,13:40 #7 high_flyer View Profile View Forum Posts View Blog Entries View Articles Wiseguy Join Date Jan 2006 Location Munich, Germany Posts 4,320 Thanks 20 Thanked

Browse other questions tagged c++ qt macros undefined vtable or ask your own question. Home Forum Today's Posts FAQ Calendar Forum Actions Mark Forums Read Quick Links View Site Leaders Docs Contest FAQ Blogs Links What's New? You may have to register before you can post: click the register link above to proceed. It's only the most common way of doing it.

My best guess would be that you are not included the MOC generated files in your project (the CPP files which it generates).