LabelImg Could Not Load

Currently I am attempting to complete Unit 4 of ROS Deep Learning w/ Tensorflow 101. The issue is that I am trying to run labelImg and the following is given instead:

qt.qpa.plugin: Could not load the Qt platform plugin “xcb” in “” even though it was found.This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcompos
ite-glx, webgl, xcb.

Aborted (core dumped)

I have noticed that LableImg Not Found had attempted to fix this and I tried the same fix the fellow student did, and it did not work.

Could you state here what did you do exactly before the “labelImg” command. Becuase I justr tried it here and it issues some warning but it appears in the Grapycal Tools without much issue: