Re Xubuntu, with ISO of 20170328 I'm still not seeing this bug - good!
With Lubuntu ISO 20170327 (64 bit, 32 bit not tested) I'm now seeing an error message of:
Could not install package
GDBus.Error:org.freedekstop.org.DBus.Error.ServiceUnknown: the name org.freedesktop.PackageKit was not provided by an service files
Re Xubuntu, with ISO of 20170328 I'm still not seeing this bug - good!
With Lubuntu ISO 20170327 (64 bit, 32 bit not tested) I'm now seeing an error message of:
Could not install package
GDBus.Error: org.freedekstop .org.DBus. Error.ServiceUn known: the name org.freedesktop .PackageKit was not provided by an service files