config_usb_printer.py crashed with ImportError in /usr/share/hplip/base/status.py: No module named hpmudext

happens on every boot, but seems to be no problem after.

ProblemType: Crash
DistroRelease: Ubuntu 15.04
Package: hplip-data 3.15.2-0ubuntu2
ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5
Uname: Linux 3.18.0-13-generic x86_64
ApportVersion: 2.16-0ubuntu1
Architecture: amd64
CupsErrorLog:

Date: Mon Feb 9 09:21:24 2015
ExecutablePath: /usr/share/hplip/config_usb_printer.py
InstallationDate: Installed on 2014-07-23 (201 days ago)
InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131017)
InterpreterPath: /usr/bin/python2.7
Lpstat: device for Deskjet_1000_J110: hp:/usb/Deskjet_1000_J110_series?serial=CN35E18K8S05YD
MachineType: Hewlett-Packard 120-1126
PackageArchitecture: all
Papersize: letter
PpdFiles: Deskjet_1000_J110: HP Deskjet 1000 j110 Series, hpcups 3.15.2
ProcCmdline: /usr/bin/python /usr/bin/hp-config_usb_printer 001:005
ProcEnviron:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.18.0-13-generic root=UUID=044e8d69-a5dc-459a-af1b-a3e8cef994a9 ro quiet splash vt.handoff=7 init=/lib/systemd/systemd
PythonArgs: ['/usr/bin/hp-config_usb_printer', '001:005']
SourcePackage: hplip
Title: config_usb_printer.py crashed with ImportError in /usr/share/hplip/base/status.py: No module named hpmudext
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 08/17/2011
dmi.bios.vendor: AMI
dmi.bios.version: ARM_703
dmi.board.name: 2AC7
dmi.board.vendor: Quanta
dmi.board.version: 011
dmi.chassis.asset.tag: 4CS20309C8
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnAMI:bvrARM_703:bd08/17/2011:svnHewlett-Packard:pn120-1126:pvr:rvnQuanta:rn2AC7:rvr011:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: 120-1126
dmi.sys.vendor: Hewlett-Packard