Dependency Browser window is empty

[Victor Porton]

When I open Tools / Browsers / Dependency in GNAT GPS menu, I see an empty window (no graph).

Compiling the library before showing it does not help.

ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: gnat-gps 17.0.2017-1ubuntu1
ProcVersionSignature: Ubuntu 4.18.0-13.14-generic 4.18.17
Uname: Linux 4.18.0-13-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Dec 30 09:15:06 2018
InstallationDate: Installed on 2018-06-23 (189 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IL
 SHELL=/bin/bash
SourcePackage: gnat-gps
UpgradeStatus: Upgraded to cosmic on 2018-10-20 (70 days ago)