The same problem with hplip-3.19.5. Some notes from https://www.linuxquestions.org/questions/linux-software-2/hplip-keeps-looping-at-plug-in-installation-4175647505/ by user zaskar_84
1. hp-setup -g 2. got some messages like thise "hp-setup[3796]: debug: Either /usr/lib/i386-linux-gnu/sane/hpgt2500_ntdcmsdll.so file is not present or symbolic link is missing" "hp-setup[3796]: debug: Either /usr/lib64/x86_64-linux-gnu/sane/hpgt2500_ntdcmsdll.so file is not present or symbolic link is missing" "hp-setup[3796]: debug: Either /usr/lib64/x86_64-linux-gnu/libjpeg.so.9 file is not present or symbolic link is missing" and so on. 3. but you HAVE this files in system (in other places) 4. make missing dirs: /usr/lib/i386-linux-gnu /usr/lib64/x86_64-linux-gnu 5. make missing symlinks: sudo ln -s /usr/lib/sane /usr/lib/i386-linux-gnu/sane sudo ln -s /usr/lib64/x86_64-linux-gnu /usr/lib/x86_64-linux-gnu sudo ln -s /usr/lib64/sane /usr/lib64/x86_64-linux-gnu/sane 6. install of hp-setup completed with plugin (use local downloaded hplip-3.19.5-plugin.run) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to hplip in Ubuntu. https://bugs.launchpad.net/bugs/1825717 Title: hplip issue during hp-setup - stuck at plugin install Status in hplip package in Ubuntu: Confirmed Bug description: Fresh install of Kubuntu 19.04 Installed hplip from repositories, available version is 3.19.1+dfsg0-1 When I start setup with hp-setup, this happens: 1. I am asked connection type. I select network ethernet 2. My printer is detected. I select it and hit next 3. I am told about the proprietary plugin to download. I confirm, accept download. I enter my user's password. I get a confirmation that the plugin is correctly Installed. 4. On next screen, I get a warning and cannot continue installation. I am told this printer needs a proprietary plugin to work correctly. After this I am stuck in a loop between points 3 and 4. I also tried to start hp-setup from super user on command line. but no way around this issue. What I did next, I manually downloaded hplip-3.19.3.run from HP website. Removed version of hplip installed from repositories. Installed from manually downloaded package, followed the very same steps. Everything worked fine and printer is installed successfully. I hope this information is useful. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/1825717/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp