Hello people: I am using XUbuntu 18.04 and when trying to install the nfs-kernel-server the system displays an error message similar to the title of the report issue of this bug. root@srvdata1804x64:~# apt install nfs-kernel-server Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: nfs-common Suggested packages: open-iscsi watchdog The following NEW packages will be installed: nfs-common nfs-kernel-server 0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 299 kB of archives. After this operation, 1110 kB of additional disk space will be used. Do you want to continue? [Y/n] Get:1 http://archive.ubuntu.com/ubuntu bionic/main amd64 nfs-common amd64 1:1.3.4-2.1ubuntu5 [205 kB] Get:2 http://archive.ubuntu.com/ubuntu bionic/main amd64 nfs-kernel-server amd64 1:1.3.4-2.1ubuntu5 [94.0 kB] Fetched 299 kB in 0s (12.9 MB/s) Selecting previously unselected package nfs-common. (Reading database ... 47730 files and directories currently installed.) Preparing to unpack .../nfs-common_1%3a1.3.4-2.1ubuntu5_amd64.deb ... Unpacking nfs-common (1:1.3.4-2.1ubuntu5) ... Selecting previously unselected package nfs-kernel-server. Preparing to unpack .../nfs-kernel-server_1%3a1.3.4-2.1ubuntu5_amd64.deb ... Unpacking nfs-kernel-server (1:1.3.4-2.1ubuntu5) ... Processing triggers for ureadahead (0.100.0-20) ... Setting up nfs-common (1:1.3.4-2.1ubuntu5) ... Creating config file /etc/idmapd.conf with new version Created symlink /etc/systemd/system/multi-user.target.wants/nfs-client.target -> /lib/systemd/system/nfs-client.target. Created symlink /etc/systemd/system/remote-fs.target.wants/nfs-client.target -> /lib/systemd/system/nfs-client.target. nfs-utils.service is a disabled or a static unit, not starting it. Setting up nfs-kernel-server (1:1.3.4-2.1ubuntu5) ... Created symlink /etc/systemd/system/multi-user.target.wants/nfs-server.service -> /lib/systemd/system/nfs-server.service. A dependency job for nfs-server.service failed. See 'journalctl -xe' for details. Creating config file /etc/exports with new version Creating config file /etc/default/nfs-kernel-server with new version A dependency job for nfs-server.service failed. See 'journalctl -xe' for details. invoke-rc.d: initscript nfs-kernel-server, action "start" failed. * nfs-server.service - NFS server and services Loaded: loaded (/lib/systemd/system/nfs-server.service; enabled; vendor preset: enabled) Active: inactive (dead) Feb 25 13:37:23 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 13:37:23 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Feb 25 13:40:16 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 13:40:16 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Feb 25 13:53:31 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 13:53:31 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Feb 25 14:18:15 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 14:18:15 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Feb 25 14:18:16 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 14:18:16 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Failed to start nfs-kernel-server, ignoring. Processing triggers for systemd (237-3ubuntu10.13) ... Processing triggers for man-db (2.8.3-2ubuntu0.1) ... Processing triggers for ureadahead (0.100.0-20) ... root@srvdata1804x64:~# systemctl list-dependencies nfs-kernel-server nfs-kernel-server.service * |-auth-rpcgss-module.service (GRAY COLOR) * |-nfs-config.service (GRAY COLOR) * |-nfs-idmapd.service (GRAY COLOR) * |-nfs-mountd.service (GRAY COLOR) * |-proc-fs-nfsd.mount (RED COLOR) * |-rpc-svcgssd.service (GRAY COLOR) * |-rpcbind.socket (GREEN COLOR) * |-system.slice (GREEN COLOR) * `-network.target (GREEN COLOR) root@srvdata1804x64:~# systemctl status nfs-kernel-server.service * nfs-server.service - NFS server and services Loaded: loaded (/lib/systemd/system/nfs-server.service; enabled; vendor preset: enabled) Active: inactive (dead) Feb 25 13:37:23 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 13:37:23 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Feb 25 13:40:16 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 13:40:16 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Feb 25 13:53:31 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 13:53:31 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'. Feb 25 14:18:15 srvdata1804x64 systemd[1]: Dependency failed for NFS server and services. Feb 25 14:18:15 srvdata1804x64 systemd[1]: nfs-server.service: Job nfs-server.service/start failed with result 'dependency'.