Recommended Update Procedure

I've always been curious what the recommend update procedure should be. It seems each release of Qt creates a new folder under the root C:\Qt\ folder. For example I had

C:\Qt\4.4.2
C:\Qt\2009.02

The reason I ask is this...

I had gotten a trial version of the commercial 4.4.2 and created a little test program. For the last several months I haven't worked on it but with the new 4.5.1 out under LGPL I decided to pick up Qt again. The first thing I did before installing the qt-sdk-win-opensource-2009.02.1.exe was to uninstall 4.4.2. After that I installed the new SDK with no errors other than at the very end it says "Could not open INI file." but still completes the installation. Perhaps there is a problem there?

Anyways, when I reload my older (4.4.2 based) solution in VS2005 and try to compile I get,

ERROR: Can't find the Qt version that's associated with this project.

NOTE: I also have the QT Visual Studio Add-In (1.1) I noticed that my environment variable was pointing QTDIR=C:\Qt\4.4.2\ so that was the first problem the installer didn't seem to fix. So I repointed it to C:\Qt\2009.02 (I've also tried C:\QT\2009.02\qt) and restarted VS2005. Still I get the same error recompiling.

After reading through some forum postings I went to the the Qt Menu in VS2005 and went to QT Options. Under QT version nothing is listed. So I clicked the Add button and browsed to the folder where Qt is installed. The problem is the OK button is always disbled no matter what directory I am in.

So I guess my overall question is how should I have CORRECTLY updated from 4.4.2 (commercial demo) to 4.5.1 LGPL? Also is there any way to convert my project that was initially created in 4.4.2 to 4.5.1?

Thanks in advanced!

2009.02 is compiled against MinGW, not Visual Studio. You have to rebuild it against Visual Studio if you want to use this compiler.

Ahh, I guess thats why all the library files were .a instead of .lib.

However I curious what you do if there is a new update out that you want to upgrade to. Do you install them side by side and just switch the environemnt variable QTDIR?

You install them side by side and use different qmake (or run visual studio with a differently setup path).

Ok, I am going to uninstall everything. Reboot. Reinstall the SDK and compile it for VS2005 and then install Visual Studio Add-In. Then I'l be back to update.

Thanks wysota.

If you want to use Visual Studio then installing the SDK makes no sense. Download a source-only release of Qt 4.5 and build it against MSVC. The SDK is a compiler, an IDE and Qt and you only need the latter.

Makes sense. I didn't know if there was anything additional in the SDK other than Qt Creator.

So if I got just this:

http://get.qtsoftware.com/qt/source/...-src-4.5.1.zip

and the Visual Studio add-in 1.0.1 I should be good?

Yes. And you need Visual Studio as well, of course :rolleyes:

Quick update....after 4 hours of compiling i now have the SDk working and Visual Studio Add-in finally allowed me to add the folder under Qt->Qt Options.

One problem I am currently having is that it did not build the QAXcontainer.lib/.dll was this because I needed to explicetly list it under the configuration.exe command line? Is there a simple way I can get compiled?

Thanks


*EDIT* - It looks like its only available in the commercial version. Not the open source. I hope they move it over....

They will move it to LGPL.