delete from - will be one line but can appear as several if word wrap is turned on.completely remove any item tags containing the path //RecoveryList.edit registrymodifications.xcu with text editor (such as gedit).make a backup of registrymodifications.xcu.for me from a default install it's stored under /.config/libreoffice/4/user.close any open LibreOffice windows navigate to where LibreOffice stores registrymodifications.xcu.

The 'simple' solution for me was to do the following: Ubuntu 14.04.2 with LibreOffice version 4.2.8.2 Hitting Cancel as other posters suggest is not a solution for me because the same dialog keeps being shown every time I close and reopen the application.