VC++ 2008 compile error

[cutie.monkey]

hi folks, im new to VC++ programming with QT. I'm using Visual Studio 2008, Opensource Qt 4.5.3 and Qt4 Visual Studio Add In 1.1.1. I've created a new Qt4 application project and try to compile it, but during compilation i got this error:


LINK : fatal error LNK1181: cannot open input file 'qtmain.lib'

could anyone help me to fix this error? thnks:confused:

[schnitzel]

technically, that is not an error in the compilation stage, but rather in the linking stage.
Do you know where this 'qtmain.lib' exists?
VS has a problem opening or locating the said library.
Did you perhaps forget to tell VS where it can find this library?

There might be a good reason why you are using VS, but if you are just starting with C++ and Qt, you might be better off using Qt Creator. That way it is easier to try out Qt examples.

Something like this might be a good read:
http://www.cs.duke.edu/~ola/book/compiling.html

Once you master that, I would recommend diving into Qt's excellent online documentation:
http://doc.qt.nokia.com/4.6/how-to-learn-qt.html

There is a reference to an online book on the above page if you prefer more guided approach.

good luck

[cutie.monkey]

Do you know where this 'qtmain.lib' exists?


no, i have searched the Qt install directory but i can't find it. All i found are the .a's files under the lib folder.



There might be a good reason why you are using VS,


yes, you're right. i'm currently trying to convert a program to qt, it is created using visual c++.



but if you are just starting with C++ and Qt, you might be better off using Qt Creator. That way it is easier to try out Qt examples.


actually, i'm no longer a qt beginner, i've already created programs using Qt Creator and QDevelop. Now, i'm trying to use and learn Visual C++ with Qt.

[squidge]

Did you recompile Qt to support Visual Studio? Otherwise no .lib files exist, only .a files. Once you rebuild Qt using Visual studios compiler, there will be .lib files.

[cutie.monkey]

Did you recompile Qt to support Visual Studio?


not yet, how can i recompile it to support VS?

[squidge]

You need to run 'configure' from a dos prompt.

Eg.

configure -platform win32-msvc2008

and then build the libraries using nmake

This can easily take 4 hours or more, so be patient.

[cutie.monkey]

thnks, so i have to configure Qt first...

[HalphaZ]

"and Qt4 Visual Studio Add In 1.1.1" <-- this should avoid QT compilation, doesn't it?

[charles1812]

Hey, someone discuss a relative topic:How to automatically stop Visual C++ 2008 build at first compile error? (http://www.longhowl.com/howls/138) , maybe helpful