[BUG] ComboBox.valueRole is not available.

[axionl]

基本信息

操作系统：Arch Linux Latest

V2Ray Desktop 版本：tag v1.5.1

V2Ray Desktop 安装方式：Build from source code.

描述问题

Settings and Rules panels are unable to display.

复现问题的步骤（非常重要）

1. The QML Debugger Console info:

2. Comment out the valueRole property on ComboBox can display the components, but other calls are obviously broken which does not affect our debugging.

3. I noticed that the valueRole property was introduced in QtQuick.Controls 2.14 (Qt 5.14) but the current build version is also the same.

https://doc.qt.io/qt-5/qml-qtquick-controls2-combobox.html#valueRole-prop

[Dr-Incognito]

Sorry, I cannot reproduce the error.

[Dr-Incognito]

Could you provide the output of pacman -Qs qt5?

As for me, the output is

➜  ~ pacman -Qs qt5
local/qt5-base 5.14.1-2 (qt qt5)
    A cross-platform application and UI framework
local/qt5-declarative 5.14.1-1 (qt qt5)
    Classes for QML and JavaScript languages
local/qt5-location 5.14.1-1 (qt qt5)
    Provides access to position, satellite and area monitoring classes
local/qt5-quickcontrols 5.14.1-1 (qt qt5)
    Reusable Qt Quick based UI controls to create classic desktop-style user
    interfaces
local/qt5-quickcontrols2 5.14.1-1 (qt qt5)
    Next generation user interface controls based on Qt Quick
local/qt5-script 5.14.1-1 (qt qt5)
    Classes for making Qt applications scriptable. Provided for Qt 4.x
    compatibility
local/qt5-svg 5.14.1-1 (qt qt5)
    Classes for displaying the contents of SVG files
local/qt5-tools 5.14.1-1 (qt qt5)
    A cross-platform application and UI framework (Development Tools, QtHelp)
local/qt5-wayland 5.14.1-1 (qt qt5)
    Provides APIs for Wayland
local/qt5-webchannel 5.14.1-1 (qt qt5)
    Provides access to QObject or QML objects from HTML clients for seamless
    integration of Qt applications with HTML/JavaScript clients
local/qt5-webengine 5.14.1-1 (qt qt5)
    Provides support for web applications using the Chromium browser project
local/qt5-x11extras 5.14.1-1 (qt qt5)
    Provides platform-specific APIs for X11

[axionl]

$ pacman -Qs qt5 | awk 'NR%2' |  awk -F/ '{print $2}' 

appstream-qt 0.12.10-2
avahi 0.8+6+g751be80-1
fcitx5-qt5-git r149.2e38c95-3
grantlee 5.2.0-2
kimageformats 5.67.0-1 (kf5)
kvantum-qt5-git 0.14.1.r39.g87bae21-1
libaccounts-qt 1.16-1
libdbusmenu-qt5 0.9.3+16.04.20160218-4
packagekit-qt5 1.0.2-1
phonon-qt5 4.11.1-1
phonon-qt5-gstreamer 4.10.0-1
plasma-framework 5.67.0-2 (kf5)
polkit-qt5 0.113.0-1
poppler-qt5 0.85.0-1
pyside2 5.14.1-1 (qt qt5)
python-pyqt5 5.14.1-2 (pyqt5)
python-pyqt5-sip 12.7.1-1
qca 2.2.1-4
qt5-3d 5.14.1-2 (qt qt5)
qt5-base 5.14.1-2 (qt qt5)
qt5-charts 5.14.1-1 (qt qt5)
qt5-connectivity 5.14.1-1 (qt qt5)
qt5-datavis3d 5.14.1-1 (qt qt5)
qt5-declarative 5.14.1-1 (qt qt5)
qt5-graphicaleffects 5.14.1-1 (qt qt5)
qt5-imageformats 5.14.1-1 (qt qt5)
qt5-location 5.14.1-1 (qt qt5)
qt5-lottie 5.14.1-1 (qt qt5)
qt5-multimedia 5.14.1-1 (qt qt5)
qt5-networkauth 5.14.1-1 (qt qt5)
qt5-purchasing 5.14.1-1 (qt qt5)
qt5-quickcontrols 5.14.1-1 (qt qt5)
qt5-quickcontrols2 5.14.1-1 (qt qt5)
qt5-remoteobjects 5.14.1-1 (qt qt5)
qt5-script 5.14.1-1 (qt qt5)
qt5-scxml 5.14.1-1 (qt qt5)
qt5-sensors 5.14.1-1 (qt qt5)
qt5-serialbus 5.14.1-1 (qt qt5)
qt5-serialport 5.14.1-1 (qt qt5)
qt5-speech 5.14.1-1 (qt qt5)
qt5-svg 5.14.1-1 (qt qt5)
qt5-tools 5.14.1-1 (qt qt5)
qt5-translations 5.14.1-1 (qt qt5)
qt5-virtualkeyboard 5.14.1-1 (qt qt5)
qt5-wayland 5.14.1-1 (qt qt5)
qt5-webchannel 5.14.1-1 (qt qt5)
qt5-webengine 5.14.1-1 (qt qt5)
qt5-webglplugin 5.14.1-1 (qt qt5)
qt5-webkit 5.212.0alpha3-9
qt5-websockets 5.14.1-1 (qt qt5)
qt5-x11extras 5.14.1-1 (qt qt5)
qt5-xcb-private-headers 5.14.1-2
signond 8.60-1
sonnet 5.67.0-1 (kf5)

[Frederick888]

I can also confirm this issue. Installed via AUR on an up-to-date Arch Linux system.

[0xJchen]

Same problem occurred on latest version arch Linux. Failed to compile the package.

[Dr-Incognito]

@Frederick888 @peppacat
Sorry for the inconvenience.
Are you using KDE as your desktop environment? I haven't tested it on KDE.

I'm busy these days. I'll check this issue ASAP.
Could you provide the output of pacman -Qs qt5?

Thank you very much!

[Dr-Incognito]

@axionl @Frederick888 @peppacat
BTW, as mentioned by @zhanghua000 at AUR.
Does the application work normally with the root user?

[axionl]

Thanks for the mention. From my points of view, the qqc2-desktop-style 5.67.1-1 (kf5) package on Arch Linux also provides the ComboBox.qml which is the old one. The default QML_IMPORT_PATH also include the sub-directory org.kde.desktop. This is similar to a component issue previously reported by one person.

$ pacman -Ql qqc2-desktop-style | rg ComboBox.qml
qqc2-desktop-style /usr/lib/qt/qml/QtQuick/Controls.2/org.kde.desktop/ComboBox.qml

After backing up this file, I soft-linked a new component (/usr/lib/qt/qml/QtQuick/Controls.2/ComboBox.qml) and found that the problem was indeed solved.

Trace Details:

[Dr-Incognito]

Hi @axionl
Do you have any idea to solve this issue?
Manually replacing ComboBox.qml seems not a good solution.

[Dr-Incognito]

I created a bug report at KDE Bug Tracking System.