[FUG-BR] This application failed to start because it could not find or load the Qt platform plugin "xcb", in "".

[Clayton Eduardo dos Santos]

Boa noite pessoal,

Hoje pela manhã, atualizei alguns pacotes via portmaster e percebi que
várias aplicações deixaram de funcionar, apresentando a seguinte
mensagem de erro:

===================================================================

This application failed to start because it could not find or load the
Qt platform plugin "xcb"
in "".

Available platform plugins are: minimal, offscreen, xcb.

Reinstalling the application may fix this problem.
Abort (core dumped)

===================================================================

Após algumas pesquisas, habilitei o debug dos plugins do QT via||
"setenv QT_DEBUG_PLUGINS 1" e passei a obter a seguinte saída:
||||||
===================================================================

QFactoryLoader::QFactoryLoader() checking directory path
"/usr/local/lib/qt5/plugins/platforms" ...

QFactoryLoader::QFactoryLoader() looking at
"/usr/local/lib/qt5/plugins/platforms/libqminimal.so"
Found metadata in lib
/usr/local/lib/qt5/plugins/platforms/libqminimal.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "minimal"
        ]
    },
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("minimal")
QFactoryLoader::QFactoryLoader() looking at
"/usr/local/lib/qt5/plugins/platforms/libqoffscreen.so"
Found metadata in lib
/usr/local/lib/qt5/plugins/platforms/libqoffscreen.so, metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "offscreen"
        ]
    },
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 329218
}


Got keys from plugin meta data ("offscreen")
QFactoryLoader::QFactoryLoader() looking at
"/usr/local/lib/qt5/plugins/platforms/libqxcb.so"
Found metadata in lib /usr/local/lib/qt5/plugins/platforms/libqxcb.so,
metadata=
{
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
        "Keys": [
            "xcb"
        ]
    },
    "className": "QXcbIntegrationPlugin",
    "debug": false,
    "version": 329218
}

Got keys from plugin meta data ("xcb")
QFactoryLoader::QFactoryLoader() checking directory path
"/usr/local/bin/platforms" ...
loaded library "/usr/local/lib/qt5/plugins/platforms/libqxcb.so"
QLibraryPrivate::loadPlugin failed on
"/usr/local/lib/qt5/plugins/platforms/libqxcb.so" : "Cannot load library
/usr/local/lib/qt5/plugins/platforms/libqxcb.so:
(/usr/local/lib/libxkbcommon-x11.so.0: version V_0.5.0 required by
/usr/local/lib/libQt5XcbQpa.so.5 not defined)"
This application failed to start because it could not find or load the
Qt platform plugin "xcb"
in "".

Available platform plugins are: minimal, offscreen, xcb.

Reinstalling the application may fix this problem.
Abort (core dumped)

===================================================================

Tentei criar alguns links simbólicos para tentar resolver a dependência
da libxkbcommon-x11.so.0: version V_0.5.0, mas sem sucesso.
Alguém passou por algo semelhante e conseguiu resolver?

Desde já, obrigado!

Att,

Clayton