FileDialog doesn't work with KF5 frameworkintegration

sample.qml:

import QtQuick 2.3
import QtQuick.Dialogs 1.1

FileDialog

[pc@pc ~]$ qmlscene-qt5 sample.qml
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
QObject::connect: No such signal org::freedesktop::UPower::DeviceAdded(QString)
QObject::connect: No such signal org::freedesktop::UPower::DeviceRemoved(QString)
"URL cannot be listed
trash:/"
"URL cannot be listed
trash:/"
KSambaShare: Could not find smb.conf!
[pc@pc ~]$

it is frustrating if FileDialog dont work because of worthless samba and trash.