Could Not Find or Load the Qt Platform Plugin “xcb”

If the error message

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

Reinstalling the application may fix this problem.

Aborted (core dumped)

appears when you try to launch VNL, fix it by running apt-get install libx11-xcb1. This error typically appears on (K)Ubuntu version 10.10 or older.