OpenCOR, "could not find or load the Qt platform plugin "xcb""

Question

I'm trying to install OpenCor

When I try to launch it I got this error message :

This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".

Available platform plugins are: xcb.

Reinstalling the application may fix this problem.
Aborted (core dumped)

I have found lot page on internet and some post, but nothing solved my problem....

I using Ubuntu 16.04 LTS

EDIT :

I have try to :

sudo apt-get install xcb

Which was already satified, :

xcb is already the newest version (2.4-4.3).
The following packages were automatically installed and are no longer required:
  linux-headers-4.13.0-36 linux-headers-4.13.0-36-generic
  linux-image-4.13.0-36-generic linux-image-extra-4.13.0-36-generic
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 18 not upgraded.

I tried almost everything proposed on this post and have no PPAs installed.

EDIT 2

The command : sudo apt upgrade

return :

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  linux-headers-4.13.0-36 linux-headers-4.13.0-36-generic
  linux-image-4.13.0-36-generic linux-image-extra-4.13.0-36-generic
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

and still have the same problem with OpenCOR and the little script from @Fabby still do not give output at all...

N0rbert · Accepted Answer · 2018-05-01T16:22:05.650

Stable OpenCOR 0.5 works on clean Ubuntu 16.04 LTS after

cd ~/Downloads
wget http://www.opencor.ws/downloads/0.5/OpenCOR-0-5-Linux.tar.gz
tar -xf OpenCOR-0-5-Linux.tar.gz
cd OpenCOR-0-5-Linux/
./OpenCOR

but shows warning on launch:

/usr/lib/x86_64-linux-gnu/libproxy.so.1: symbol _ZTTNSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEEE, version GLIBCXX_3.4.21 not defined in file libstdc++.so.6 with link time reference
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgiolibproxy.so

You can remove these messages with

sudo apt-get install glib-networking

But it shows Error: illegal value in the interface:

I'm not familiar with this program, so I do not known is it critical or not.

--

Also it seems that Latest snapshot version works out the box on
clean installation of Ubuntu 16.04 LTS.

You can proceed with:

cd ~/Downloads
wget http://www.opencor.ws/downloads/snapshots/2018-04-23/OpenCOR-2018-04-23-Linux.tar.gz
tar -xf OpenCOR-2018-04-23-Linux.tar.gz
cd OpenCOR-2018-04-23-Linux/
./OpenCOR

Then its GUI window was opened:

OpenCOR, "could not find or load the Qt platform plugin "xcb""

1 Answers1

Linked