undefined reference to `vtable for MainWindow'

[amigo421]

Hi

Created my first Qt project (Gui)
droped the button on the main form
and added a handler for this button clicking
and got this error.

how can this be fixed and why this was raised in the trivial project?

[SGaist]

Hi,

It generally means that at some point you added/removed the Q_OBJECT macro. In any case, re-run qmake and rebuild your project and you should be good to go

[amigo421]

looks like a magic
rerun qmake/rebuild didn't solve the issue
but re-creating the project solved

thank you in any case!

[amigo421]

This post is deleted!