Unable to create io-slave ... Error loading '/usr/lib64/qt5/plugins/kf5/kio/file.so'.
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  1. #1
    Join Date
    Jul 2013
    Linux Chrome 71.0.3578.98

    Unable to create io-slave ... Error loading '/usr/lib64/qt5/plugins/kf5/kio/file.so'.


    Unable to create io-slave. klauncher said: Error loading '/usr/lib64/qt5/plugins/kf5/kio/file.so'.

    I have just upgraded packages in Fedora 29 (KDE Plasma) by using "dnf upgrade" (since I had a notification about new upgrades), as soon as the upgrade finished the file manager (Dolphin) stopped working and can't open it and neither can open/save nothing from any graphical interface program. I can't even open the screenshot to add it since all the programs are unable to open files.

    Fortunately I did the update in a konsole window (instead of the graphical interface) and that way was able to copy the entire upgrade process.

    Please help me! My KDE system is completely USELESS without OPEN/SAVE! I am worried that if I reboot or restart KDE it will not even start 8(

    P.S. The forum does not allow me to post the whole update text, so I had to edit and remove the major part, just left the KF5 and QT5 files. If there is a way to send the whole text (99,617 bytes) let me know how.

    # dnf update
    Last metadata expiration check: 9:31:09 ago on Fri 11 Jan 2019 10:01:42 PM CST.
    Dependencies resolved.
    ================================================== ================================================== ===========
    Package Arch Version Repository Size
    ================================================== ================================================== ===========
    kf5-akonadi-server-mysql x86_64 18.08.3-2.fc29 updates 11 k
    kf5-frameworkintegration x86_64 5.53.0-3.fc29 updates 1.6 M
    kf5-frameworkintegration-libs x86_64 5.53.0-3.fc29 updates 29 k
    kf5-kdeclarative x86_64 5.53.0-3.fc29 updates 250 k
    kf5-kwayland x86_64 5.53.0-3.fc29 updates 418 k
    kf5-kxmlgui x86_64 5.53.0-3.fc29 updates 752 k
    qt5-qdbusviewer x86_64 5.11.3-1.fc29 updates 50 k
    qt5-qtbase x86_64 5.11.3-1.fc29 updates 3.1 M
    qt5-qtbase-common noarch 5.11.3-1.fc29 updates 14 k
    qt5-qtbase-gui x86_64 5.11.3-1.fc29 updates 5.4 M
    qt5-qtbase-mysql x86_64 5.11.3-1.fc29 updates 40 k
    qt5-qtconnectivity x86_64 5.11.3-1.fc29 updates 466 k
    qt5-qtdeclarative x86_64 5.11.3-1.fc29 updates 3.1 M
    qt5-qtenginio x86_64 1:1.6.2-20.fc29 updates 167 k
    qt5-qtgraphicaleffects x86_64 5.11.3-1.fc29 updates 111 k
    qt5-qtimageformats x86_64 5.11.3-1.fc29 updates 88 k
    qt5-qtlocation x86_64 5.11.3-1.fc29 updates 2.8 M
    qt5-qtmultimedia x86_64 5.11.3-1.fc29 updates 779 k
    qt5-qtquickcontrols x86_64 5.11.3-1.fc29 updates 993 k
    qt5-qtquickcontrols2 x86_64 5.11.3-1.fc29 updates 1.8 M
    qt5-qtscript x86_64 5.11.3-1.fc29 updates 851 k
    qt5-qtsensors x86_64 5.11.3-1.fc29 updates 193 k
    qt5-qtserialport x86_64 5.11.3-1.fc29 updates 64 k
    qt5-qtspeech x86_64 5.11.3-1.fc29 updates 42 k
    qt5-qtspeech-speechd x86_64 5.11.3-1.fc29 updates 24 k
    qt5-qtsvg x86_64 5.11.3-1.fc29 updates 167 k
    qt5-qttools x86_64 5.11.3-1.fc29 updates 40 k
    qt5-qttools-common noarch 5.11.3-1.fc29 updates 12 k
    qt5-qttools-libs-designer x86_64 5.11.3-1.fc29 updates 2.7 M
    qt5-qttools-libs-help x86_64 5.11.3-1.fc29 updates 150 k
    qt5-qttranslations noarch 5.11.3-1.fc29 updates 1.8 M
    qt5-qtvirtualkeyboard x86_64 5.11.3-1.fc29 updates 2.1 M
    qt5-qtwayland x86_64 5.11.3-1.fc29 updates 713 k
    qt5-qtwebchannel x86_64 5.11.3-1.fc29 updates 84 k
    qt5-qtwebengine x86_64 5.11.3-2.fc29 updates 38 M
    qt5-qtwebkit x86_64 5.212.0-0.31.alpha2.fc29 updates 12 M
    qt5-qtwebsockets x86_64 5.11.3-1.fc29 updates 86 k
    qt5-qtx11extras x86_64 5.11.3-1.fc29 updates 34 k
    qt5-qtxmlpatterns x86_64 5.11.3-1.fc29 updates 1.0 M
    qt5-srpm-macros noarch 5.11.3-1.fc29 updates 9.1 k
    Installing dependencies:

    Transaction Summary
    ================================================== ================================================== ===========
    Install 3 Packages
    Upgrade 104 Packages

    Total download size: 262 M
    Is this ok [y/N]: y

  2. #2
    Join Date
    Jul 2013
    Linux Chrome 71.0.3578.98

    Re: Unable to create io-slave ... Error loading '/usr/lib64/qt5/plugins/kf5/kio/file.


    1) I restarted KDE (exit and start again) but icons disappeared and the start button did not open any menu anymore, I was unable even to exit KDE since there was no shutdown function available.

    2) I opened a konsole via ALT-F2 and performed a REBOOT as root. Apparently the filesystem is working back, I will be working the entire day, if there is a new issue will add an update to this post. By now, if you experience the same problem try to reboot and start again KDE.

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