Same issue here. As a workaround, manually create the /usr/share/hunspell directory.
- Bug#995685: dictionaries-common: Failed to upgrade f... Nelson A. de Oliveira
- Bug#995685: (no subject) Giorgos Skafidas
- Bug#995685: dictionaries-common: Failed to upgr... Jochen Sprickerhof
- Bug#995685: dictionaries-common: Failed to ... Agustin Martin
- Bug#995685: dictionaries-common: Failed... Jochen Sprickerhof
