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