Horace papa's life

When I run the "wireshark" in ubuntu 20.04. I got the error message and can't execute wireshark successfully. I ALWAYS GOT THIS ERROR

qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in ""
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

I do the searching I found many solutions. BUT that didn't work for me. I have installed every application they mentioned.

However, I noticed the most important information which leads to wireshark can't find the xcb liberary.

In the ubuntu 20.04, I have installed xcb liberary already. BUT some how wireshark can't find it in the path "/usr/bin/platform"

I add link from /usr/bin/platforms/ to /usr/lib/x86_64-linux-gnu to resolve this issue.

sudo ln -s /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/ /usr/bin/platforms

Maybe it works for you as well

if you are suffer the problem

sudo apt-get install teams

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 teams : Depends: libgtk-3-0 (>= 3.19.12) but 3.18.9-1ubuntu3.3 is to be installed
E: Unable to correct problems, you have held broken packages.

I downgraded to use this to resolve

sudo apt install teams=1.3.00.30857