Package: nx-libs Version: 3.5.99.16-1.el7.x86_64 On this system auto-update for CentOS is enabled. The system is CentOS Linux release 7.5.1804. For some unknown reason auto-update did not work on this system. It worked on other systems. Here are the errors when updating with yum: ---> Package nx-libs.x86_64 0:3.5.99.16-1.el7 will be updated --> Processing Dependency: nx-libs(x86-64) = 3.5.99.16-1.el7 for package: libNX_X11-3.5.99.16-1.el7.x86_64 --> Processing Dependency: nx-libs(x86-64) = 3.5.99.16-1.el7 for package: libXcomp-3.5.99.16-1.el7.x86_64 --> Processing Dependency: nx-libs(x86-64) = 3.5.99.16-1.el7 for package: libXcompshad-3.5.99.16-1.el7.x86_64 --> Finished Dependency Resolution Error: Package: libXcompshad-3.5.99.16-1.el7.x86_64 (@epel) Requires: nx-libs(x86-64) = 3.5.99.16-1.el7 Removing: nx-libs-3.5.99.16-1.el7.x86_64 (@epel) nx-libs(x86-64) = 3.5.99.16-1.el7 Updated By: nx-libs-3.5.99.17-0.0build1.1.git20181127.3188.main.el7.x86_64 (x2go-release-epel) nx-libs(x86-64) = 3.5.99.17-0.0build1.1.git20181127.3188.main.el7 Error: Package: libXcomp-3.5.99.16-1.el7.x86_64 (@epel) Requires: nx-libs(x86-64) = 3.5.99.16-1.el7 Removing: nx-libs-3.5.99.16-1.el7.x86_64 (@epel) nx-libs(x86-64) = 3.5.99.16-1.el7 Updated By: nx-libs-3.5.99.17-0.0build1.1.git20181127.3188.main.el7.x86_64 (x2go-release-epel) nx-libs(x86-64) = 3.5.99.17-0.0build1.1.git20181127.3188.main.el7 Error: Package: libNX_X11-3.5.99.16-1.el7.x86_64 (@epel) Requires: nx-libs(x86-64) = 3.5.99.16-1.el7 Removing: nx-libs-3.5.99.16-1.el7.x86_64 (@epel) nx-libs(x86-64) = 3.5.99.16-1.el7 Updated By: nx-libs-3.5.99.17-0.0build1.1.git20181127.3188.main.el7.x86_64 (x2go-release-epel) nx-libs(x86-64) = 3.5.99.17-0.0build1.1.git20181127.3188.main.el7 The solution to this is to uninstall all of x2go and then reinstalling the x2go-server. Have a nice day, Franz Lückl