Could not find or load the Qt platform plugin "xcb".

38 次查看（过去 30 天）
M
M 2017-10-9
评论： Knut Jørgen 2021-4-29
Hi,
I am trying to launch an executable from Matlab.
I am using Matlab 2017b and Ubuntu 16.04 and this executable file has been compiled with ubuntu too.
When I launch this file from a terminal
./myExe
it works fine but when I launch it from Matlab I get this error :
[status, out]=system('./myExe')
status = 134
out = This application failed to start because it could not find or load the Qt platform plugin "xcb".
I already looked at the answers provided here : https://fr.mathworks.com/matlabcentral/answers/272702-opening-exe-file-from-matlab-in-ubuntu-gives-error
but I have not been able to make it work.
Thank you for any help you could provide.

请先登录，再回答此问题。

采纳的回答

Carl
Carl 2017-10-11
Try the steps below and see if they solve the issue:
1) Check whether the environment variables are the same when running from the terminal vs running from MATLAB. You can use the printenv or env commands (and use the system function to call them within MATLAB). In particular, look for the value of the PATH and LD_LIBRARY_PATH variables. Make sure that the necessary libraries on the terminal paths are available from MATLAB as well.
2) Try the following steps:
  • Identify the location where MATLAB is installed
  • Navigate to the sys/os/glnxa64 directory within this installation folder
  • Rename libstdc++.so.6 library to libstdc++.so.6.old
3) If you know where your QT installation is, you can try setting the following environment variable:
$ export QT_PLUGIN_PATH=<qt_base_path>/plugins

更多回答（1 个）

M
M 2017-10-16
编辑：M 2018-2-7
Thanks for your answer.
I got the same PATH from the terminal and from Matlab but on the linux terminal I don't have any "LD_LIBRARY_PATH" entry.
Is this the problem ?
EDIT : With a new installation of QT and Matlab, I am able to fix the problem using "LD_LIBRARY_PATH".
  2 个评论
Mao Cai
Mao Cai 2017-10-31
I have the similar problem which does't occur in Matlab 2017a.
The crash also happens in windows version. It seems to have relationship to image library.
But older version of 2017a is working fine.
Knut Jørgen
Knut Jørgen 2021-4-29
I too have this problem. It is present with Matlab 2021a and I am using freeview from fressurfer.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Introduction to Installation and Licensing 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by