[Solved] The Qt version is invalid: Qt version is not properly installed, please run make install -- How to fix?

vincegata

Hi,

I installed Qt Creator 2.2.1 on Ubuntu 11.04 from this website. The file I used: Qt Creator 2.2.1 for Linux/X11 64-bit (82 MB)

When I tried to build the application I got an error that qmake is missing. So I installed qmake from repository using the following command:

sudo apt-get install qt4-qmake

Now, when I build the application I get this error: The Qt version is invalid: Qt version is not properly installed, please run make install.

How do I resolve it? I would prefer not to install the whole SDK as I am not developing Qt applications. I assume this is possible since Qt Creator is offered as a stand alone application.

Thanks again!

Eddy

qt Creator 2.2.1 needs a higher qmake version to build than the one you get from your ubuntu package.

I guess you need the sdk to get a higher version of qmake.

I had that message before, but i remember it told me what version i needed at least.

.

ludde

Not sure you can use Qt Creator without Qt. Are you using a .pro file to define your project? In that case you need to remove the default dependencies on the core and gui modules:
@QT -= core gui@
But I'm not sure that will be enough.

Eddy

You could just install the Qt library to get a higher version of qmake. Not the complete sdk.

Don't forget to alter your PATH to the new qmake directory.

vincegata

I see,

Is qmake the only file I need?

I am downloading Qt Library to get qmake, then I am thinking to uninstall the library.

THX!

Eddy

bq. Is qmake the only file I need?
I am downloading Qt Library to get qmake, then I am thinking to uninstall the library.

why would you want to uninstall the library? I think you will get dependencies messed up

loladiro

From README
[quote]
Building the sources requires Qt 4.7.1 or later.
[/quote]

Edit: My Ubuntu 10.04 installation has 4.6.2 as the latest version, so no you can't remove the library, you need to build against it.

vincegata

I am not doing any Qt development, I am working on algorithms. I'd like to use Qt Creator as my IDE on Ubuntu and since it is offered on its own I tend to believe I will be able to run it without any Qt libraries or SDK.

So, I think I can use Qt Creator without Qt libraries.

Can I use qmake without Qt libraries? Or, do I have to replace qmake with cmake?

Thank you.

loladiro

Qt Creator is using the Qt Framework so you need at least Qt 4.7.1 to run it.

vincegata

[quote author="loladiro" date="1308683912"]Qt Creator is using the Qt Framework so you need at least Qt 4.7.1 to run it.[/quote]

Just to run Qt Creator? I am running it right now without installing any libraries.

loladiro

Well, Ubuntu installed Qt 4.6 for you which is enough to run your old version of Qt Creator.

vincegata

Phew, I (almost) understand now. Thank you.