can bus example, unable to build, Project ERROR: Unknown module(s) in QT: serialbus

osfe

Hi there,
I'm trying to build the can bus example which is part of the qt5 bundle of examples. The error is the following one :

Project ERROR: Unknown module(s) in QT: serialbus

My config is the following one :

centos 8
qt5 installed from packages
every qt5 package is installed, including devel and doc
qt creator 4.12.4

I really don't know what to do. Thank you for your help.

Olivier

aha_1980

Hi @osfe,

it's possible that CentOS does not provide the qtserialbus package. For example, Ubuntu 18.04 did not provide it either. It might therefore be easiest, to use the Qt online installer from http://download.qt.io/official_releases/online_installers to install the whole Qt framework.

Regards

osfe

Hi aha_1980
thank you for your answer. I think qtserialbus exists

dnf search  qt5 | grep -i serial
Dernière vérification de l’expiration des métadonnées effectuée il y a 3:00:56 le mar. 10 nov. 2020 10:05:43 CET.
qt5-qtserialbus.x86_64 : Qt5 - SerialPort component
qt5-qtserialbus.i686 : Qt5 - SerialPort component
qt5-qtserialport.x86_64 : Qt5 - SerialPort component
qt5-qtserialport.i686 : Qt5 - SerialPort component
qt5-qtserialport-devel.x86_64 : Development files for qt5-qtserialport
qt5-qtserialport-devel.i686 : Development files for qt5-qtserialport
qt5-qtserialbus-examples.x86_64 : Programming examples for qt5-qtserialbus
qt5-qtserialport-examples.x86_64 : Programming examples for qt5-qtserialport
qt5-qtserialbus-doc.noarch : Documentation for qtserialbus
qt5-qtserialport-doc.noarch : Documentation for qtserialport

SGaist

Hi and welcome to devnet,

One thing to check, are you sure you are using the Qt 5 qmake ?
You might also have Qt 4 installed.

osfe

Hi,
thank you for your answer. definitely I use Qt5 :)

aha_1980

Hi @osfe,

You seem to miss qt5-qtserialbus-devel.* which is needed for development.

Regards

osfe

@aha_1980 said in can bus example, unable to build, Project ERROR: Unknown module(s) in QT: serialbus:

qt5-qtserialbus-devel

You might be right... I feel like I'll need to install the qt framework with online installer...

 dnf search qt5 | grep -i serial | grep -i devel
Dernière vérification de l’expiration des métadonnées effectuée il y a 4:46:28 le mar. 10 nov. 2020 10:05:43 CET.
qt5-qtserialport-devel.x86_64 : Development files for qt5-qtserialport
qt5-qtserialport-devel.i686 : Development files for qt5-qtserialport

SGaist

I can confirm @aha_1980 is correct, QtSerialBus and QtSerialPort are two different modules. But since you have both available with your distribution, you can go on with them unless you need a specific version of Qt.

osfe

@SGaist Actually, if you have a closer look, I don't have qt5-qtserialbus-devel...

kuzulis

@osfe said in can bus example, unable to build, Project ERROR: Unknown module(s) in QT: serialbus:

I don't have qt5-qtserialbus-devel...

Please read how to upgrate the right repos for your Fedora distro on the Fedora forums then. Because the qtserialbus-devel package exists on Fedora: https://fedora.pkgs.org/32/fedora-updates-x86_64/qt5-qtserialbus-devel-5.14.2-1.fc32.x86_64.rpm.html

Oops, sorry, it is CentOS v8.. Then change the Linux distro, because it is not the qtserialbus issue.

SGaist

Old eyes...

I would recommend complaining to your distribution.

osfe

@SGaist :)

osfe

From centos forum :

Re: qt5-qtserialbus-devel not in repos

It appears to be one of the missing -devel packages that Red Hat don't want to release. There are mailing list discussions, bug reports etc about this. I'd suggest reading those, especially the mailing list, as there is a pointer to a ticket somewhere (that I don't remember) gathering requests for the missing packages and reasons why they are needed.

Pablo J. Rogina

@osfe what if you build the Qt SerialBus module yourself?