Ubuntu 18.04.1 LTS Attempting to install gluu following the instructions here: https://gluu.org/docs/ce/installation-guide/install/ apt-get install gluu-server-3.1.6 Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: linux-aws-headers-4.15.0-1029 linux-aws-headers-4.15.0-1031 linux-aws-headers-4.15.0-1032 linux-aws-headers-4.15.0-1033 linux-aws-headers-4.15.0-1034 linux-headers-4.15.0-1032-aws linux-headers-4.15.0-1034-aws linux-image-4.15.0-1032-aws linux-image-4.15.0-1034-aws linux-modules-4.15.0-1032-aws linux-modules-4.15.0-1034-aws Use 'apt autoremove' to remove them. The following NEW packages will be installed: gluu-server-3.1.6 0 upgraded, 1 newly installed, 0 to remove and 171 not upgraded. Need to get 605 MB of archives. After this operation, 1150 MB of additional disk space will be used. Get:1 https://repo.gluu.org/ubuntu xenial/main amd64 gluu-server-3.1.6 amd64 1-13~xenial+Ub16.04 [605 MB] Fetched 605 MB in 12s (51.7 MB/s) Selecting previously unselected package gluu-server-3.1.6. (Reading database ... 246736 files and directories currently installed.) Preparing to unpack .../gluu-server-3.1.6_1-13~xenial+Ub16.04_amd64.deb ... Unpacking gluu-server-3.1.6 (1-13~xenial+Ub16.04) ... Processing triggers for ureadahead (0.100.0-20) ... Setting up gluu-server-3.1.6 (1-13~xenial+Ub16.04) ... update-rc.d: error: unable to read /etc/init.d/gluu-server-3.1.6 dpkg: error processing package gluu-server-3.1.6 (--configure): installed gluu-server-3.1.6 package post-installation script subprocess returned error exit status 1 Processing triggers for systemd (237-3ubuntu10.19) ... Errors were encountered while processing: gluu-server-3.1.6 I have attempted to remove all packages and files and repeat the process but it still doesn't work. Any advice appreciated.