Help!....

[k12yp70n]

Hi there folks, I've encountered a big problem here....

Let's just say that I have just upgraded to the latest version of Qt and now I am unable to build any of my software projects that use signals/slots. When I try to build I get this message:

Undefined symbols:
"main_window::save()", referenced from:
main_window::qt_metacall(QMetaObject::Call, int, void**)in moc_main_window.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

And yes I'm using the Q_OBJECT macro, so I think I should be running into any sort of problem...

Thanks in Advance.

[Lykurg]

Have you cleaned your project before building with the new version of Qt?

[k12yp70n]

I have but it still doesn't work...:(

[PaceyIV]

try to run qmake and then compile

[k12yp70n]

Tried that as well and it didn't work...:(

[PaceyIV]

What are you using to develop and compile your project? QtCreator?
Have you check that in Tool\Options\Qt4 is selected the right and valid Qt Version Path?

[wysota]

Does the implementation of main_window::save() really exist?

[k12yp70n]

Yes I have checked the version of Qt that I am using through Qt Creator (4.5.2)

And yes save() has been implemented

[wysota]

Are you sure it's included into the project and gets compiled during the build process? Can you show us where save() is implemented and what it contains?