qt5dxcb-plugin seems to be a component of QtGui that can be built with the
-qt-xcb flag (Qt XCB). I guess to include this in the slicer packaging QT should be included as a whole? I’m with you on avoiding the user installing packages to use the packaged binaries, but we need to be careful not ending up packaging all the way to the Linux kernel
thanks @manjula. It is exactly the same version as in Ubuntu 20.10. We may not be hitting the right diagnostic here with the compatibility. Would you mind to paste a list of your installed packages in dpaste?
to do this you can install
sudo apt install xclip
and then copy the list of packages in the clipboard
sudo apt list --installed | xclip -selection c
thenk you can go to dpaste, paste (Ctrl+V) the results and post here the link. If PoP is almost Ubuntu, maybe we find the difference.
Thanks in advance.
Please note that most of my packages i have is in flatpak but here is the link.
I mentioned about flatpak because when I was figuring out what was going wrong with linkSlicerBlender the deb version of the Blender was giving error in importing numpy, Apparently it was a know issue with blender but when i switch to flatpak it went away.
I have installed PopOS 20.10 (also the packages from @manjula) and got the same results as with Ubuntu 20.10:
- Error due to missing
libxcb-xinerama0on Slicer stable (
libxcb-xinerama0is installed, segmentation fault is produced on startup.
- Segmentation fault is removed by compiling python with
I still think the problem is leaning towards a compatibility problem between python and libffi 3.4.
I think I am experiencing the same issue with Ubuntu 20.10. Can you tell me how to use the BUILTIN_CTYPES=ON work-around? I have not been able to figure it out from the online documentation. Thanks!
This is a build option for the
cpython-cmake-buildsystem project, you can enable this option adding
CMAKE_CACHE_ARGS in this file:
Then, you would have to re-build Slicer from the top-level.
Thanks! Adding -DBUILTIN_CTYPES:BOOL=ON worked. Though the extension I need doesn’t won’t run in the latest build. Oh well, it’s been that kind of year.
Which extension it is ?
Segmentation Wizard. It last worked for me in 4.10.2. The extension seems to install OK and I can see it in the Extensions manager window, but I can not find it under modules in the main program and it is listed as “not loaded” when I search using Module finder. Thanks for any help; I just need to finish up a little bit of old data.
Yes. Your system is not compatible with the precompiled binaries that we provide.
I today tried building Slicer in Manjaro Linux on a fresh install. it failed, with the following errors.
This is the output from the finals parts
As @RafaelPalomar said i checked the version of libffi
core/libffi 3.3-4 [installed]
Portable foreign function interface library
A binding to libffi
multilib/lib32-libffi 3.3-2 [installed]
A portable, high level programming interface to various calling conventions (32-bit)
@manjula, I think your problem is not related to the issue discussed in this thread. This thread is starting to be a mix of different issues and is becoming difficult to follow. I suggest that you open a new thread for discussing it.
It may be better to keep this thread as general discussion topic here and create separate issues in the issue tracker to discuss technical details there.
apt-get install libxcb-xinerama0-dev
seemed to work for me on ubuntu 16.04
I found this solution here and worked fine for me:
sudo apt-get install --reinstall libxcb-xinerama0
Thank you. This is also described in the Slicer install instructions.
@Karam_AbuGhalieh Do you have a suggestion how to make the instructions easier to find?
I was there before facing the problem, now I am surprised the solution is there!
I think what I did is just reading the Linux section and ignoring the next Debian/Ubuntu one!!
Note that for another machine where I started from a fresh unbuntu 20.04 that wasn’t configured as a desktop workstation I also needed to add this package to get past the xcb startup issue:
sudo apt-get install libxcb-shape0
I also installed these packages to get xvfb-run to work with Slicer:
sudo apt-get install libxcb-icccm4-dev libxcb-image0-dev libxcb-keysyms1-dev libxcb-randr0 libxcb-render-util0 libxcb-xkb-dev libxkbcommon-x11-dev