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

Question

I'm trying to run a simple client example using QTWebsockets using Qt Creator, already add the

QT       += websockets

But it throws this when i run build or qmake

:-1: error: Unknown module(s) in QT: websockets

I tried

QT       += core websockets

Then realized that since installed Qt Creator from the repositories it wasn't up to date, so I reinstalled it from the Qt website but the problem persisted, I then ran pkg-config --modversion QtCore and it returns 4.8.6, thing is, in the QT version tab of qt creator it shows 5.4.1 to GCC compiler which is the compiler I’m using, in /opt/Qt/5.4/gcc_64/lib there is the QT5WebSockets module even in the help tab are listed the QT5 modules but I can't use them.

Tried with SerialPort and it didn't work, tried with Opengl and it worked which means is a version problem but I can't seem to find how to solve.

For qt version which qt creator sees it is important what is listed in Options -> Build & Run -> Qt versions, do you have only 5.4.1 there? Also could you please add to your post the exact text of error? — demonplus
– demonplus, Commented Apr 29, 2015 at 4:24
In the auto-detect part it only sees 5.4.1 for GCC and Android armv7, and in manual it shows Qt 5.2.1 in PATH (qt5) — Christian Raul Hidalgo Pino
– Christian Raul Hidalgo Pino, Commented Apr 29, 2015 at 14:48
Does this answer your question? Project ERROR: Unknown module(s) in QT: webkitwidgets — iammilind
– iammilind, Commented Feb 10, 2022 at 11:51

eyllanesc · Accepted Answer · 2018-08-02 04:37:19Z

20

sudo apt-get install libqt5websockets5-dev

edited Aug 2, 2018 at 4:37

eyllanesc

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answered Apr 23, 2017 at 9:02

sonichy

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Christian Raul Hidalgo Pino · Accepted Answer · 2015-04-29 17:35:20Z

1

I solved it, the problem was that I just opened the project I made with qt4, when I tried to build it in the freshly installed qt creator the .pro.user file kept pointing to all qt4.

Solution, create a new project and add the source from the first, or change all the references from qt4 to qt5.

answered Apr 29, 2015 at 17:35

Christian Raul Hidalgo Pino

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eyllanesc · Accepted Answer · 2018-08-02 04:37:12Z

0

sudo zypper install libqt5-qtwebsockets-devel

edited Aug 2, 2018 at 4:37

eyllanesc

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answered Aug 2, 2018 at 4:34

K.K.

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