The error in the logs is:
De-configuring plymouth-theme-lubuntu-logo (0.56) ... /var/lib/dpkg/info/plymouth-theme-lubuntu-logo.prerm called with unknown argument `deconfigure' dpkg: error processing archive /var/cache/apt/archives/plymouth_0.9.2-3ubuntu2_amd64.deb (--unpack): subprocess installed pre-removal script returned error exit status 1
This is a grave bug in the plymouth-theme-lubuntu-logo package.
The error in the logs is:
De-configuring plymouth- theme-lubuntu- logo (0.56) ... dpkg/info/ plymouth- theme-lubuntu- logo.prerm called with unknown argument `deconfigure' apt/archives/ plymouth_ 0.9.2-3ubuntu2_ amd64.deb (--unpack):
/var/lib/
dpkg: error processing archive /var/cache/
subprocess installed pre-removal script returned error exit status 1
This is a grave bug in the plymouth- theme-lubuntu- logo package.