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Re: udefined reference to vtable, how get rid of?

Subject: Re: udefined reference to vtable, how get rid of?
From: Chris Thompson
Date: Wed, 10 Nov 2004 12:35:18 -0700
On November 10, 2004 12:21 pm, tj wrote:
> I am trying to learn how to use Qt after years of using xforms for X
> apps. I went through the cannonball game tutorials and then started
> playing on my own, especially with QTextEdit. I overrode ::append to do
> some testing and that was ok. But, when I tried to add a new slot the
> trouble began.
> First I didn't put Q_OBJECT in the class declaration and got a runtime
> message saying the connect failed. Ok, then I added Q_OBJECT and got the
> "undefined reference to 'vtable for mtTextEdit' error.
> I removed Makefile and the .pro file and reran
> qmake -project
> qmake
> before building. Which, according to my research on other posts, should
> take care of the meta code compiling.

Are you SURE that you did this AFTER adding the Q_OBJECT reference?  Try 
deleting the existing Makefiles, then redoing it.

If that doesn't work, make sure it is creating and linking the moc file for 

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