[QT 5.9.0] App Update to 5.9.0 : QtWebSockets module not installed

KiisuK

Hi !

Today i'm trying the new Qt release.
I want to update an app i've made with Qt5.7.0 which use some websockets.

The 5.9.0 build works, but at the runtime, i get the error "QtWebSockets module is not installed".

In my 5.7.0 files, i have the import line like that :

import Qt.WebSockets 1.0

But i've seen that since the Qt 5.8 release, we have to write it without the dot

import QtWebSockets 1.0

I tried to launch the echo websocket qml client and it works ! So I assume that it's not a Qt install problem.
I also see in the example that they add the code below into the .pro file, so i did it.

QT += websockets

But it still display the error : 'QtWebSockets module is not installed"

Thanks for your help !