This happened at end of the upgrade proccess. rpm --import https://fedoraproject.org/static/246110C1.txt yum update yum yum --releasever=20 distro-sync ..... (2255/2255): xulrunner-26.0-2.fc20.x86_64.rpm | 23 MB 00:00:04 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 6.1 MB/s | 2.2 GB 00:06:04 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-free-fedora-20 Importing GPG key 0xAE688223: Userid : "RPM Fusion free repository for Fedora (20) <rpmfusion-buildsys.org>" Fingerprint: 0017 ddfe fd13 2929 9d55 b1d3 963a 8848 ae68 8223 Package : rpmfusion-free-release-19-1.noarch (@rpmfusion-free/19) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-free-fedora-20 Is this ok [y/N]: y Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-nonfree-fedora-20 Importing GPG key 0xB5F29883: Userid : "RPM Fusion nonfree repository for Fedora (20) <rpmfusion-buildsys.org>" Fingerprint: a84d cf58 46cb 10b6 5c47 6c35 63c0 de8c b5f2 9883 Package : rpmfusion-nonfree-release-19-1.noarch (@rpmfusion-nonfree/19) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-rpmfusion-nonfree-fedora-20 Is this ok [y/N]: y Running transaction check Running transaction test Transaction check error: file /usr/share/doc/libtiff-devel/html/Makefile conflicts between attempted installs of libtiff-devel-4.0.3-12.fc20.i686 and libtiff-devel-4.0.3-12.fc20.x86_64 file /usr/share/doc/libtiff-devel/html/images/Makefile conflicts between attempted installs of libtiff-devel-4.0.3-12.fc20.i686 and libtiff-devel-4.0.3-12.fc20.x86_64 Error Summary -------------
*** This bug has been marked as a duplicate of bug 1044609 ***