etherape crashes on start up - GnomeCanvas-CRITICAL

[Majestyx]

i will start etherape as sudo/root

Bash tells me:

(etherape:4333): GLib-GObject-WARNING **: 16:08:15.807: invalid cast from 'GtkLabel' to 'GnomeCanvas'

(etherape:4333): GnomeCanvas-CRITICAL **: 16:08:15.807: gnome_canvas_root: assertion 'GNOME_IS_CANVAS (canvas)' failed

(etherape:4333): GnomeCanvas-CRITICAL **: 16:08:15.807: gnome_canvas_item_new: assertion 'GNOME_IS_CANVAS_GROUP (parent)' failed
**
ERROR:diagram.c:250:addref_canvas_obj: assertion failed: (obj)
unexpected EOF in read_all()
critical: read_all() failed on control socket

:~$ lsb_release -rd
Description: Ubuntu 18.04.1 LTS
Release: 18.04

:~$ apt-cache policy etherape
etherape:
  Installiert: 0.9.16-1
  Installationskandidat: 0.9.16-1
  Versionstabelle:
 *** 0.9.16-1 500
        500 http://de.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: etherape 0.9.16-1
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.3
Architecture: amd64
CurrentDesktop: XFCE
Date: Sun Sep 23 16:16:17 2018
InstallationDate: Installed on 2018-09-11 (12 days ago)
InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
 LANGUAGE=de_DE
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: etherape
UpgradeStatus: No upgrade log present (probably fresh install)

[Hans Joachim Desserud (hjd)]

Thanks for taking your time to report this issue and help making Ubuntu better.

Could you please try to install libgnomeui-0 to see if that resolves this issue. I believe this might be a duplicate of bug 1752712 which is caused by a missing dependency.

[Majestyx (majestyx)]

Hello Hans-Joachim,

Big Thanks for your Help. Yes it was a missing dependency...
Maybe i have missed the bug 1752712-

Please, close this Bug.

[Hans Joachim Desserud (hjd)]

Great, marking this as a duplicate then :)