Found this bug because this is the only hit I found on search engines for the error I was seeing. I have a Debian system.
The problem is apparently because /usr/lib/libreoffice/share/extensions is (in my case) a 0-byte file and installing an extension resolves the issue. I was also able to resolve it by erasing the file and creating the directory. Example: mah@gabriel:~$ libreoffice Warning: failed to launch javaldx - java may not function correctly terminate called after throwing an instance of 'com::sun::star::deployment::DeploymentException' Unspecified Application Error mah@gabriel:~$ libreoffice --version LibreOffice 7.3.4.2 30(Build:2) mah@gabriel:~$ sudo rm /usr/lib/libreoffice/share/extensions mah@gabriel:~$ sudo mkdir /usr/lib/libreoffice/share/extensions mah@gabriel:~$ libreoffice Warning: failed to launch javaldx - java may not function correctly mah@gabriel:~$ dpkg -S /usr/lib/libreoffice/share/extensions dpkg-query: no path found matching pattern /usr/lib/libreoffice/share/extensions mah@gabriel:~$ apt-file search /usr/lib/libreoffice/share/extensions | cut -d : -f 1 | sort -u | xargs dpkg -l Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-==========================-=====================-============-=================================================== ii libreoffice-common 1:7.3.4~rc2-1~bpo11+1 all office productivity suite -- arch-independent files un libreoffice-wiki-publisher <none> <none> (no description available) un libreoffice-writer2latex <none> <none> (no description available) un libreoffice-writer2xhtml <none> <none> (no description available) dpkg-query: no packages found matching eyes17 dpkg-query: no packages found matching libreoffice-canzeley-client dpkg-query: no packages found matching libreoffice-dmaths dpkg-query: no packages found matching libreoffice-grammalecte dpkg-query: no packages found matching libreoffice-lightproof-en dpkg-query: no packages found matching libreoffice-lightproof-hu dpkg-query: no packages found matching libreoffice-lightproof-pt-br dpkg-query: no packages found matching libreoffice-lightproof-ru-ru dpkg-query: no packages found matching libreoffice-nlpsolver dpkg-query: no packages found matching libreoffice-numbertext dpkg-query: no packages found matching libreoffice-parlatype dpkg-query: no packages found matching libreoffice-texmaths dpkg-query: no packages found matching libreoffice-voikko
