From Synaptic error message:
E: /var/cache/apt/archives/libgl1-mesa-dri-lts-xenial_11.2.0-1ubuntu2~trusty1_i386.deb: trying to overwrite shared '/etc/drirc', which is different from other instances of package libgl1-mesa-dri-lts-xenial:i386
From Synaptic error message:
E: /var/cache/ apt/archives/ libgl1- mesa-dri- lts-xenial_ 11.2.0- 1ubuntu2~ trusty1_ i386.deb: trying to overwrite shared '/etc/drirc', which is different from other instances of package libgl1- mesa-dri- lts-xenial: i386