Recommended Update Procedure

[GimpMaster]

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!

[wysota]

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

[GimpMaster]

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?

[wysota]

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

[GimpMaster]

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.

[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.

[GimpMaster]

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?

[wysota]

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

[GimpMaster]

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....

[wysota]

They will move it to LGPL.