Problem with QtWebview :: Project compiled but has issue in running

[Fakhri]

Hi,

I installed qt and qtwebview in GuixSD. I want to build the example project of qtwebview:
https://github.com/qt/qtwebview/tree/5.12/examples/webview/minibrowser

The project was compiled with qmake and the executable file was generated (minibrowser). But when I run the minibrowser I get this error:

No WebView plug-in found!

How can I fix it? Why this error occurred? Please help me.

[SGaist]

Hi and welcome to devnet,

Start your application with the QT_DEBUG_PLUGINS environment variable set to 1. This will show what happens with the plugins loading.

[Fakhri]

@SGaist said in Problem with QtWebview :: Project compiled but has issue in running:

QT_DEBUG_PLUGINS

Thank you for your reply. This is the output of application when I set QT_DEBUG_PLUGINS environment variable to 1.

Log File[0_1563080156365_log](Uploading 100%)

I don't know how can I use this log information. Do you see any problem with these logs?

[Fakhri]

Excuse apparently I can't upload the file here.

These lines are available in my log:

[...]
loaded library "/gnu/store/644m36biz8f2n0j8bjw2k2m7051584iy-qt-5.11.3/lib/qt5/qml/QtQuick/Controls/libqtquickcontrolsplugin.so"
Found metadata in lib /gnu/store/ilz7sxcwg2gd0qffavsp1vm4g6bn3b5d-qtwebview-5.11.3/lib/qt5/qml/QtWebView/libdeclarative_webview.so, metadata=
{
    "IID": "org.qt-project.Qt.QQmlExtensionInterface/1.0",
    "MetaData": {
    },
    "className": "QWebViewModule",
    "debug": false,
    "uri": [
        "QtWebView"
    ],
    "version": 330499
}
[...]

Where is the problem?

[SGaist]

Please provide the full log. This entry alone doesn't contain all the data needed to check what is happening.

[Fakhri]

@SGaist This is link of full log file:
https://gofile.io/?c=tgWDqP

Please review and help me :)

[SGaist]

How did you install Qt ?
What version is it ?
Are you using an out of source build of the example ?

[Fakhri]

@SGaist I'm using GuixSD distribution (Linux) and install the Qt by its package manager guix.
The 5.11.3 is available in guix package repository and I installed it. Also I'm using this example:

https://github.com/qt/qtwebview/tree/5.12/examples/webview/minibrowser

[SGaist]

Might be a silly question but did you check that your distribution provided Qt is complete ?

[Fakhri]

@SGaist I'm not sure, but I know that qtwebengine removed from the qt package.

https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/qt.scm#n143

What's your idea? Do you see any problem in log file?

[SGaist]

You have to talk with the guys from the guix project about that matter.

The QtWebkit module has been deprecated and removed but not QtWebEngine. Note that @Konstantin-Tokarev is working on reboot of QtWebkit.

[Fakhri]

@SGaist Thanks for your good contribution,
How can I make sure that my distribution provided Qt is complete?

The QtWebkit module has been deprecated and removed but not QtWebEngine.

I mean QtWebEngine is removed from guix qt package. (based on this link)

Did you see any problem in the log file?

[SGaist]

Well, you have to talk with the folks of your distribution.

As for your trouble, I just remembered and IIRC, the QtWebView module is backed by QtWebEngine on platforms that don't provide a native web widget like iOS.

So you might be experiencing that.