I have firefox-55.0.2-2.fc26.x86_64 installed on my machine, but when I run dnf it state firefox (with the same NEVRA) cannot be installed because of conflicts. # rpm -q firefox dnf nspr firefox-55.0.2-2.fc26.x86_64 dnf-2.6.3-1.git.13.f1cca7e.fc26.noarch nspr-4.15.0-1.fc26.x86_64 nspr-4.15.0-1.fc26.i686 # dnf upgrade ... Last metadata expiration check: 0:17:10 ago on Mon 28 Aug 2017 12:34:57 PM CEST. Dependencies resolved. Problem 1: cannot install the best update candidate for package VirtualBox-guest-additions-5.1.22-1.fc27.x86_64 - nothing provides VirtualBox-kmod = 5.1.26 needed by VirtualBox-guest-additions-5.1.26-2.fc27.x86_64 Problem 2: package firefox-55.0.2-2.fc26.x86_64 conflicts with pkgconfig(nspr) >= 4.16 provided by nspr-devel-4.16.0-1.fc26.x86_64 - cannot install the best update candidate for package nspr-devel-4.15.0-1.fc26.x86_64 - cannot install the best update candidate for package firefox-55.0.2-2.fc26.x86_64 Problem 3: problem with installed package firefox-55.0.2-2.fc26.x86_64 - package firefox-55.0.2-2.fc26.x86_64 conflicts with pkgconfig(nspr) >= 4.16 provided by nspr-devel-4.16.0-1.fc26.x86_64 - problem with installed package nspr-devel-4.15.0-1.fc26.x86_64 - package nspr-devel-4.15.0-1.fc26.x86_64 requires nspr = 4.15.0-1.fc26, but none of the providers can be installed - cannot install both nspr-4.16.0-1.fc26.i686 and nspr-4.15.0-1.fc26.i686 - cannot install both nspr-4.16.0-1.fc26.x86_64 and nspr-4.15.0-1.fc26.x86_64 - cannot install the best update candidate for package nspr-4.15.0-1.fc26.i686 - cannot install the best update candidate for package nspr-4.15.0-1.fc26.x86_64 ====================================================================================================================================================== Package Arch Version Repository Size ====================================================================================================================================================== Skipping packages with conflicts: (add '--best --allowerasing' to command line to force their upgrade): firefox x86_64 55.0.2-2.fc26 updates 82 M nspr i686 4.16.0-1.fc26 updates 143 k nspr x86_64 4.16.0-1.fc26 updates 137 k nspr-devel x86_64 4.16.0-1.fc26 updates 119 k Skipping packages with broken dependencies: VirtualBox-guest-additions x86_64 5.1.26-2.fc27 rpmfusion-free-rawhide 1.6 M Transaction Summary ====================================================================================================================================================== Skip 5 Packages Nothing to do. The problem is that nspr cannot be installed. So the error is in fact correct, but the wording is not right. It should not state that firefox cannot be installed, because that is already installed. It should say that nspr cannot be installed because of conflict with firefox.
it's firefox conflicting with nspr rather ;)
Whatever, but firefox shouldn't be on the "skipping packages with conflicts" list because it was already installed. I'm seeing this situation on my systems too.
Here comes PR which should fix this issue. https://github.com/rpm-software-management/libdnf/pull/322
Thanks Miroslav for the report
dnf-plugins-extras-2.0.3-1.fc27 dnf-plugins-core-2.1.4-1.fc27 dnf-2.7.2-1.fc27 libdnf-0.10.1-1.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2017-faf235c683
dnf-plugins-extras-2.0.3-1.fc26 dnf-plugins-core-2.1.4-1.fc26 dnf-2.7.2-1.fc26 libdnf-0.10.1-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-70a8618065
dnf-2.7.2-1.fc26, dnf-plugins-core-2.1.4-1.fc26, dnf-plugins-extras-2.0.3-1.fc26, libdnf-0.10.1-1.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-70a8618065
dnf-2.7.2-1.fc27, dnf-plugins-core-2.1.4-1.fc27, dnf-plugins-extras-2.0.3-1.fc27, libdnf-0.10.1-1.fc27 has been pushed to the Fedora 27 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-faf235c683
dnf-2.7.2-1.fc27, dnf-plugins-core-2.1.4-1.fc27, dnf-plugins-extras-2.0.3-1.fc27, libdnf-0.10.1-1.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
dnf-2.7.2-1.fc26, dnf-plugins-core-2.1.4-1.fc26, dnf-plugins-extras-2.0.3-1.fc26, libdnf-0.10.1-1.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.