Comments on: QObject, QMake and Sadness – ‘Undefined reference to vtable’

By: RCL

RCL — Fri, 14 May 2010 01:45:01 +0000

Thanks! Every time I run into this issue (it happened a few times) your “checklist” comes to help…

By: donglongchao

donglongchao — Mon, 02 Nov 2009 09:38:21 +0000

Edit the .pro file: Just add a space into it and then delete the space.That is OK.
Oh…………That is really crazy.Nokia should fix this fuc* bug ASAP.

By: Steve

Steve — Sat, 21 Feb 2009 00:09:23 +0000

Thanks for this post! I was completely baffled until I realized I never added my header file to the list in the project file. Very helpful!

By: hribek

hribek — Thu, 25 Dec 2008 04:04:20 +0000

Thank you very much you saved my day. Actually this is the answer to mine problems with compiling qt in Code::Blocks.

By: Nick Toole

Nick Toole — Thu, 13 Nov 2008 00:42:12 +0000

I had a similar issue, but am not using qmake in my build process.

Instread, I resolved the issue by #include-ing the moc-generated file (input: Abc.h; output: moc_Abc.cpp) in the implementation file (moc_Abc.cpp). Not sure if this is obvious, but I didn’t see it in the primary Trolltech Qt tutorial example I have been reading.

Thanks for the entry.

By: David Gillies

David Gillies — Fri, 12 Sep 2008 03:45:16 +0000

Thank you, thank you, thank you! I was about ready to give up in disgust when I read your line about adding HEADERS= to the .pro file. Could I find this on Trolltech’s site? I could not.