Comments on: Installing Qt 4.6 on Windows

By: John

John — Tue, 11 May 2010 02:21:02 +0000

I believe that is the correct solution – all of my Qt projects are also linked to the various library dependencies you have listed above. I’m glad you figured it out.

By: Merza

Merza — Thu, 29 Apr 2010 22:56:16 +0000

thanks for your quick reply, and sorry for my late one
well my code is a very simple one, just to check that everything is ok .. it’s nothing more than :

#include “qt\qapplication.h”
#include “qt\qlabel.h”

int main(int argc, char*argv[]) {
QApplication app(argc, argv);
QLabel *label = new QLabel(“Hello Qt”);
label->show();

return app.exec();
}

the error is namely :
error LNK2019: unresolved external symbol _WSAAsyncSelect@16 referenced in function “public: void __thiscall QEventDispatcherWin32Private::doWsaAsyncSelect(int)” (?doWsaAsyncSelect@QEventDispatcherWin32Private@@QAEXH@Z)
1>C:\Users\Merza\Documents\Visual Studio 2008\Projects\first_qt_empty\Debug\first_qt_empty.exe : fatal error LNK1120: 1 unresolved externals

i could solve the problem by copying all linker input paramaters from a Qt project into my empty one .. and tada
these parameters are :
kernel32.lib
user32.lib
shell32.lib
uuid.lib
ole32.lib
advapi32.lib
ws2_32.lib
gdi32.lib
comdlg32.lib
oleaut32.lib
imm32.lib
winmm.lib
winspool.lib
qtmaind.lib
QtCored.lib
QtGuid.lib

but i think there must a more professional solution, or ?!
p.s. sorry for the long post

By: John

John — Wed, 21 Apr 2010 10:55:58 +0000

Could you give me a little more detail on the linker error? There are various reasons for linker errors other than Qt. If you would like you could email the source code to johnATjohnhforrestDOTcom (replace the words with their symbols). Thanks for the feedback, I’m glad the guide helped.

By: Merza

Merza — Wed, 21 Apr 2010 09:30:29 +0000

hey,
that was so useful, thanks But :
when i create a Qt project (in VS2008) it compiles correctly .. the problem is when i start an empty win32 project and try to post some own code, i get LNK2019 error. any ideas ?!

By: John

John — Mon, 22 Mar 2010 13:37:38 +0000

If you are using Visual Studio 2008 with the add-in, try going to Qt Project Settings and choose the Qt version installed from the drop box there.

If that doesn’t work, could you give me a little more information on the error? Did you follow all the steps in the guide exactly as they are stated?

By: Atul

Atul — Mon, 22 Mar 2010 08:32:02 +0000

Hi
I have install qt 4.6.0 commercial version, I not able to create new project it is giving me “unable to fine qt build .To solve this problem specify qt build”.
Another error while i trying to open .pro using Qt menu after installing qt-addin

please help me to solved this problem

By: John

John — Tue, 19 Jan 2010 21:50:25 +0000

I’m glad you found it useful, thanks for the comment! It’s always good to hear positive feedback.

By: carck3r

carck3r — Tue, 19 Jan 2010 20:36:49 +0000

Thank you very much. It helped me. Perfect tutorial.