Why are GLX and EGL not enabled?

OpenGL OpenGL: Basic Coding
1

When we run our program, we get this message:

XcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled

What is it talking about? How do we enable one of these windowing systems?

2

The full error message has a Q at the beginning:

QXcbIntegration: Cannot create platform OpenGL context, neither GLX nor EGL are enabled.

This is a Qt application runtime error. You’re going to get the best results searching for that full error message or posting to a Qt users forum.

You might check that the Qt you’re linked with has been built with GLX and EGL support.

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