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Undefined Reference To Vtable Qt Cmake


virtual void deinit() {;} etc... 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 The vtables issue you're referring to is directly related to that. virtual void init() = 0; //! http://smartphpstatistics.com/undefined-reference/error-undefined-reference-to-vtable-for-qt.html

I copied all the cpp Files into an new clean Projekt. To copy to clipboard, switch view to plain text mode It appears to be derived from the QObject class but it does not have the Q_OBJECT macro. Thank you for your help! –Thomas Apr 7 '10 at 20:19 add a comment| 8 Answers 8 active oldest votes up vote 80 down vote Any time you add a new If this is your first visit here, please read the Help. http://stackoverflow.com/questions/4774291/q-object-throwing-undefined-reference-to-vtable-error

Error Undefined Reference To Vtable For Qobject

And indeed it appears that moc is re-run for every build without regard for whether the input files have actually changed. Simply editing the file did not work for me though. Consider the following code, which is a minimum to produce the error: class T : public QObject, public QGraphicsItem { Q_OBJECT public: T() {} QRectF boundingRect() const {return QRectF();} void paint(QPainter Why would a password requirement prohibit a number in the last character?

In the common C++ ABI, this TU is the one where the key function of the class is implemented in, where the key function is the first virtual member function that Constructor GpsLocator::GpsLocator() { // setObjectName("GpsLocator"); } //! The mortgage company is trying to force us to make repairs after an insurance claim Somewhat Generalized Mean Value Theorem maintaining brightness while shooting bright landscapes What is that the specific The Vtable Symbol May Be Undefined Because The Class Is Missing Its Key Function I tested this by commenting out the GpsLocator class and its corresponding implementation in the CPP file.

EvenSt-ring C ode - g ol!f Possible battery solutions for 1000mAh capacity and >10 year life? Truth in numbers How would a vagrant civilization evolve? Why "bu" in burial is pronounced as "be" in bed? Comments (0) No Comments » No comments yet.

If you have installed QtCreator deserves support of self-generated by QtCreator file, and with a little experience can build your own files. Qt Moc Files TH Why would a password requirement prohibit a number in the last character? I can't say why, but it's the first thing I do when I encounter this kind of error. Qt's meta-object macros are kind of picky in this regard.

Qt Undefined Reference To Vtable For Constructor

Called before the module will be delete, and before the openGL context is suppressed. //! internet You also need to run the Meta Object Compiler on the source file. Error Undefined Reference To Vtable For Qobject By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Undefined Reference To Metaobject Const This can happen if moc doesn't process the header for your class for some reason. –Tyler McHenry Mar 31 '10 at 19:37 I am working with QT Creator.

The problem is that I can't get around an error I am getting which is: undefined reference to 'vtable for StelModule' I have reduced my code down to the basics and http://smartphpstatistics.com/undefined-reference/undefined-reference-to-vtable-for-destructor.html I just tested this class: class Test: public QObject {Q_OBJECT} and this compiles just fine assuming header file resides in .pro The moment I comment it out - I get the Here is my code: HPP file: Qt Code: Switch view #ifndef GPSLOCATOR_HPP#define GPSLOCATOR_HPP#include "StelGui.hpp"#include "StelModule.hpp"#include "StelFader.hpp"#include "StelPluginInterface.hpp"class QTimer;class QPixmap;class StelButton;class GpsLocatorDialog;//! This may solve your problem. Qt Undefined Reference To Vtable For Class

How do I explain that this is a terrible idea? If you are looking for information about Qt related issue — register and post your question. Or maybe it isn't generated at all. http://smartphpstatistics.com/undefined-reference/undefined-reference-to-vtable-for-constructor.html How?

I personally perceive that sometimes the change discovery / caching effects / whatever-I-don't-know xxxxx. Q_object With the passing of Thai King Bhumibol, are there any customs/etiquette as a traveler I should be aware of? btw.

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Please use the registration form, to register here or read more information about the registration process. Three can keep a secret if two of them are dead. Join them; it only takes a minute: Sign up Q_OBJECT throwing 'undefined reference to vtable' error [duplicate] up vote 40 down vote favorite 15 This question already has an answer here: http://smartphpstatistics.com/undefined-reference/undefined-reference-to-vtable-qt-qobject.html In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms

Infinite sum of logs puzzle Truth in numbers UPDATE heap table -> Deadlocks on RID How would you help a snapping turtle cross the road? Add a virtual ~Communicate() {}; to your class, and all will be well. The advice on cleaning/running qmake (and clearing out your moc_ files) still applies. If base class (QObject in this case) has virtual destructor, then destructors in all derived classes are automatically virtual.