Your message dated Tue, 09 Jun 2026 20:07:28 +0200
with message-id <[email protected]>
and subject line meshlab: cannot open .obj files on Ubuntu 22.04
has caused the Debian Bug report #1054006,
regarding meshlab: cannot open .obj files on Ubuntu 22.04
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1054006: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054006
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: meshlab
Version: 2020.09+dfsg1-2
Severity: normal
X-Debbugs-Cc: [email protected]
Dear Maintainer,
* What led up to the situation?
sudo apt-get install -y meshlab
cat > tri.obj <<EOF
v 0 0 0
v 1 0 0
v 0 1 0
f 1 2 3
EOF
meshlab tri.obj
* What exactly did you do (or not do) that was effective (or
ineffective)?
the above
* What was the outcome of this action?
meshlab crashes with
Current Plugins Dir is: /usr/lib/x86_64-linux-gnu/meshlab/plugins
Shader directory found '/usr/share/meshlab/shaders', and it contains 19 gdp
files
meshlab: ./vcglib/wrap/io_trimesh/import_obj.h:640: static int
vcg::tri::io::ImporterOBJ<OpenMeshType>::Open(OpenMeshType&, const char*,
vcg::tri::io::ImporterOBJ<OpenMeshType>::Info&) [with OpenMeshType = CMeshO]:
Assertion `(numTriangles +numVertices) == numVerticesPlusFaces+extraTriangles'
failed.
Aborted (core dumped)
This has been reported before:
https://bugs.launchpad.net/ubuntu/+source/meshlab/+bug/1995736 &
https://github.com/cnr-isti-vclab/meshlab/issues/1270
* What outcome did you expect instead?
.obj file should be opened
-- System Information:
Debian Release: bookworm/sid
APT prefers jammy-security
APT policy: (500, 'jammy-security'), (500, 'jammy')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.2.0-34-generic (SMP w/36 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages meshlab depends on:
ii lib3ds-1-3 1.3.0-10
ii libc6 2.35-0ubuntu3.4
ii libgcc-s1 12.3.0-1ubuntu1~22.04
ii libglew2.2 2.2.0-4
ii libglu1-mesa [libglu1] 9.0.2-1
ii libglx0 1.4.0-1
ii libgmp10 2:6.2.1+dfsg-3ubuntu1
ii libgomp1 12.3.0-1ubuntu1~22.04
ii libmuparser2v5 2.2.6.1+dfsg-1build1
ii libopenctm1 1.0.3+dfsg1-2.1build2
ii libopengl0 1.4.0-1
ii libqhull8.0 2020.2-4
ii libqt5core5a 5.15.3+dfsg-2
ii libqt5gui5 5.15.3+dfsg-2
ii libqt5network5 5.15.3+dfsg-2
ii libqt5opengl5 5.15.3+dfsg-2
ii libqt5qml5 5.15.3+dfsg-1
ii libqt5widgets5 5.15.3+dfsg-2
ii libqt5xml5 5.15.3+dfsg-2
ii libstdc++6 12.3.0-1ubuntu1~22.04
Versions of packages meshlab recommends:
ii chemical-mime-data 0.1.94-7.2
meshlab suggests no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
please report ubuntu bugs to ubuntu. this has been fixed for a while:
$ meshlab cube.obj
Using OpenGL 4.6
LOG: 0 Opened mesh cube.obj in 196 msec
LOG: 0 All files opened in 196 msec
(tested with 2025.07)
--- End Message ---
