Description of problem: # dnf update --refresh Adobe Systems Incorporated 2.4 kB/s | 2.9 kB 00:01 Fedora - Modular Rawhide - Developmental packag 11 kB/s | 20 kB 00:01 Fedora - Rawhide - Developmental packages for t 11 kB/s | 20 kB 00:01 Fedora - Rawhide - Debug 11 kB/s | 20 kB 00:01 google-chrome-unstable 1.2 kB/s | 1.3 kB 00:01 local repo 357 kB/s | 3.0 kB 00:00 Opera packages 2.2 kB/s | 2.9 kB 00:01 RPM Fusion for Fedora Rawhide - Free 7.9 kB/s | 10 kB 00:01 RPM Fusion for Fedora Rawhide - Nonfree 6.3 kB/s | 10 kB 00:01 Visual Studio Code 2.3 kB/s | 2.9 kB 00:01 Dependencies resolved. Problem 1: cannot install both gnome-shell-extension-common-3.31.2-1.fc30.noarch and gnome-shell-extension-common-3.30.1-1.fc30.noarch - package gnome-shell-extension-alternate-tab-3.30.1-1.fc30.noarch requires gnome-shell-extension-common = 3.30.1-1.fc30, but none of the providers can be installed - cannot install the best update candidate for package gnome-shell-extension-common-3.30.1-1.fc30.noarch - problem with installed package gnome-shell-extension-alternate-tab-3.30.1-1.fc30.noarch Problem 2: cannot install both libreoffice-core-1:6.1.2.1-5.fc30.x86_64 and libreoffice-core-1:6.1.2.1-3.fc30.x86_64 - package libreoffice-gtk2-1:6.1.2.1-3.fc30.x86_64 requires libreoffice-core(x86-64) = 1:6.1.2.1-3.fc30, but none of the providers can be installed - cannot install the best update candidate for package libreoffice-core-1:6.1.2.1-3.fc30.x86_64 - problem with installed package libreoffice-gtk2-1:6.1.2.1-3.fc30.x86_64 ================================================================================ Package Arch Version Repository Size ================================================================================ Skipping packages with conflicts: (add '--best --allowerasing' to command line to force their upgrade): gnome-shell-extension-common noarch 3.31.2-1.fc30 rawhide 141 k libreoffice-core x86_64 1:6.1.2.1-5.fc30 rawhide 87 M Transaction Summary ================================================================================ Skip 2 Packages Nothing to do. Complete! # dnf info gnome-shell-extension-alternate-tab Last metadata expiration check: 0:25:20 ago on Fri 16 Nov 2018 02:25:31 PM +05. Installed Packages Name : gnome-shell-extension-alternate-tab Version : 3.30.1 Release : 1.fc30 Arch : noarch Size : 9.4 k Source : gnome-shell-extensions-3.30.1-1.fc30.src.rpm Repo : @System From repo : rawhide Summary : Classic Alt+Tab behavior for GNOME Shell URL : http://wiki.gnome.org/Projects/GnomeShell/Extensions License : GPLv2+ Description : This GNOME Shell extension changes Alt+Tab to be window-based : instead of app-based.