Problem in setting up QT on Linux Ubuntu (wsl2)

[GargDivanshu]

@JonB I never knew that we get a version of QT issued with our Ubuntu, How do i check it? and will it solve my issue as i am on Windows 10, WSL 2, Ubuntu 20.04, and not entirely on Linux system.

[JonB]

@GargDivanshu said in Problem in setting up QT on Linux Ubuntu (wsl2):

Ubuntu 20.04

That has Qt 5.12.x, I think, it's what I have. It's fine, and a lot easier than building for yourself, till you need a future version :)

You fetch the packages with apt-get. Go into a terminal, do a sudo -s or type sudo in front of each command.

• Do a apt-get update first.
• You may need apt-get install build-essential for compilers etc.
• The base package is apt-get install qt5-default. I think that's all you need.
• The Creator IDE is apt-get install qtcreator.

If you're ever not sure, type apt-get install qt and press Tab key twice to show all possible completions for available packages :) Don't you think Linux command-line like this is great, who needs a windowing system? ;-)

[GargDivanshu]

@JonB Thank you very much I was able to move forward.

[GargDivanshu]

@JonB well though i was able to download 5.12 but my application can't work on this versi0on and requires 5.15. If you don't mind can you help me out ?

[JonB]

@GargDivanshu
If you can upgrade to Ubuntu 22.04 that seems to come with Qt 5.15, for you to verify? Else I imagine you will need to build Qt 5.15 yourself.

[JoeCFD]

@JonB Ubuntu upgrade is not needed. I have 5.15.2 on Ubuntu 18.04. You can install a few Qt versions on the same machine. Not sure why he made two threads.
https://forum.qt.io/topic/139499/upgrading-from-qt-5-12-8-to-5-15/6

[JonB]

@JoeCFD
Oh right, I only know about using the apt-supplied version which comes with Ubuntu releases. I thought if you wanted anything else you had to build from source. Plus I like using apt :)

[JoeCFD]

@JonB Not always the case. Some Ubuntu GUI apps may be built and linked to the installed Qt. Therefore, it may be better to install the new ones under /opt/ while upgrade may make these apps unstable.

[JonB]

@JoeCFD wrote:

download qt-unified-linux-x64-online.run from

https://download.qt.io/official_releases/online_installers/

and install QT 5.15.2 into /opt/Qt

Does the download include binaries already built for Ubuntu, like the Qt version you get from Ubuntu repo, or is it just sources you need to compile yourself?

[ChrisW67]

@JonB No, just typing with my usual flair (and elbows) :)

[JoeCFD]

@JonB the same: binaries, headers and libs.