Qt5.12.3: C++ signal -> QML slot

[J.Hilk]

Well, I went and installed 5.12.3

And loe and behold, the background stays blue. And the QML error appears in the console.

since it works with 5.12.2 I would say this is a bug.

You should open that bug report you mentioned. The minimal example will help speed that one up as well!

You should post a link to the ticket, when you have. So others can find and follow it as well!

[Melle_87]

@J.Hilk:
I created a bug report.
link to bug report

But nevertheless. If someone already has a solution or workaround for this problem I would be glad to know.

[KroMignon]

@Melle_87 Very strange, I've cleaned up a little bit the project:

in pro file

...
#QT += core gui serialport serialbus network sql qml quick widgets dbus multimedia multimediawidgets printsupport
QT += core gui qml quick widgets printsupport
...

in Main.qml

import QtQuick 2.6
import QtQuick.Window 2.3
import QtQuick.Controls 1.4
import "."

...

Remove all build direction, rebuild all and now window is always red!?! in Release and Debug.

[J.Hilk]

@KroMignon
you must have done more, as simply changing the pro file to only include those, still results in a blue background for me

[KroMignon]

@J.Hilk No, I've recheck with git-diff

[Melle_87]

@KroMignon: I also can not confirm this. I changed .pro and Main.qml. But in Debug the window still stays blue and in release it gets red.

[KroMignon]

@Melle_87 @J-Hilk it seems issue has already been reported and fixed in next release 5.12.4
QTBUG-75393

[Melle_87]

@KroMignon: Yes. I saw this also. But then I have to go back to 5.12.2. Because I can not wait for Qt5.12.4.

[KroMignon]

@Melle_87 According to Qt 5.12 release plan, Qt 5.12.4 should be release @ 11.06.2019

[Melle_87]

@KroMignon: Okay. Thanks for that info.