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Linker Error Undefined Reference To Vtable For Class


I'm not sure what other information I should provide. I would double check the following: 1. share|improve this answer answered Jun 21 '12 at 12:50 Sidharth Middela 111 strange. Are there some possible problems here other than the obvious (e.g. check my blog

Also you shall define destructor as virtual. Log in to Reply Svenn-Arne Dragly says: May 11, 2012 at 00:23 Hi Teymoor, vtable errors are sometimes tricky to figure out. The same as for Frank above. It's any unresolved method. read review

Error Undefined Reference To Vtable For Qt

Published by Svenn-Arne Dragly I'm a physicist and programmer, writing about the stuff I figure out as I go. Would you like to answer one of these unanswered questions instead? When linking libraries into an executable they are done in the order they are declared.

That is in my projects at least. What are the legal consequences for a tourist who runs out of gas on the Autobahn? Such as: virtual void fooBar() = 0; See answare C++ Undefined Reference to vtable and inheritance for details. Undefined Reference To Vtable Qobject My header file went in a library somewhere, but all the virtual functions were declared 'inline' in the class declaration.

This error is caused because the linker in gcc is unable to find the functions you have defined in your headers in your actual code. The Vtable Symbol May Be Undefined Because The Class Is Missing Its Key Function share|improve this answer answered Feb 11 '14 at 23:01 Will 8011019 7 I don't need to ask a question. What does a profile's Decay Rate actually do? When does bugfixing become overkill, if ever?

asked 7 years ago viewed 133118 times active yesterday Get the weekly newsletter! Undefined Reference To `typeinfo For more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed This will save your teammates from repeating your frustration. he probably done undefined private default constructor so it cannot be used, e.g.

The Vtable Symbol May Be Undefined Because The Class Is Missing Its Key Function

Want to make things right, don't know with whom C++ delete a pointer (free memory) Why do people move their cameras in a square motion? Seriously, there should be a more specific article on some pages out there about this issue. Error Undefined Reference To Vtable For Qt Move IntInterval(); to after the first defined function: private: unsigned long begin; unsigned long end; public: virtual Interval * interval_copy(){return new IntInterval(begin,end);} IntInterval(unsigned long a,unsigned long b): begin (a), end (b) Undefined Reference To Vtable For Constructor You'll probably find that you may have forgotten to define a virtual function ForgottenFunc in your fake class.

Want to make things right, don't know with whom Yinipar's first letter with low quality when zooming in Previous company name is ISIS, how to list on CV? http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-vtable-for-mainwindow.php A possible cause of the error message OP reported would be failing to compile or link one translation unit. Red balls and Rings Why won't a series converge if the limit of the sequence is 0? Box around continued fraction What does the pill-shaped 'X' mean in electrical schematics? Undefined Reference To Vtable For C++

Can I stop this homebrewed Lucky Coin ability from being exploited? I'll add your solution to the blog post. It's definitely not here - the question is if it is in the .cc file. http://cdbug.org/undefined-reference/linker-error-undefined-reference-to-vtable.php What are the legal and ethical implications of "padding" pay with extra hours to compensate for unpaid work?

I'll add that detail to my original post. –RyanG Jun 17 '10 at 20:31 add a comment| 19 Answers 19 active oldest votes up vote 192 down vote The GCC FAQ Undefined Reference To Vtable For Destructor I'm using MinGW with GCC and GNU-Make. objdump reports that the TestBench vtable is among the unresolved externals in TestBench.o Log in to Reply Gianni Comoretto says: July 30, 2013 at 18:45 Resolved.

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The application defined a pure virtual interface class and a user-defined class provided through a shared lib was supposed to implement the interface. Players Characters don't meet the fundamental requirements for campaign Does flooring the throttle while traveling at lower speeds increase fuel consumption? I get the same error, but twice, if I define baseClass' constructor as 'baseClass() {}', as I did with derivedClass (see code). Undefined Reference To Vtable For Class C++ UV lamp to disinfect raw sushi fish slices Different precision for masses of moon and earth online Referee did not fully understand accepted paper You can find me everywhere USB in

The definition for the above functionB. What I'd like to know is how can I implement this properly to avoid getting a vtable error while still getting the benefits of Polymorphism? asked 3 years ago viewed 1075 times active 3 years ago Related 64GCC C++ Linker errors: Undefined reference to 'vtable for XXX', Undefined reference to 'ClassName::ClassName()'31Qt Linker Error: “undefined reference to http://cdbug.org/undefined-reference/linker-error-undefined-reference-vtable.php Polfer Jun 17 '10 at 20:00 1 I totally missed that the error message specifies a function.

qmake make clean make Should you still have trouble, make sure that qmake is actually generating your .moc files for any objects that need them. and the corresponding cpp file defines ALL the methods in the class template. share|improve this answer edited May 7 '15 at 9:03 answered Jan 12 '15 at 22:43 gluk47 791624 saved me some time! +1 –Martin Hennig Dec 9 '15 at 14:23 I am 99% sure I'm linking to the correct library).