2

I ran sudo apt install libgl1-mesa-dev and received the error message:

The following packages have unmet dependencies:

libgl1-mesa-dev : Depends: mesa-common-dev (= 11.2.0-1ubuntu2) but it is not going to be installed    
Depends: libgl1-mesa-glx (= 11.2.0-1ubuntu2) but 17.0.7-0ubuntu0.16.04.1 is to be installed
Depends: libdrm-dev (>= 2.4.65) but it is not going to be installed

E: Unable to correct problems, you have held broken packages.
George Udosen
  • 36,677
Haripal Baluja
  • 43

1 Answers1

2

Look carefully at the version numbers:

  • 11.2.0 is in Ubuntu 16.04
  • 17.0.7 is in Ubuntu 17.04

You seem to be trying to mix repositories from two different releases of Ubuntu. Never do that, unless you are an expert. It will break your package management. In fact, that's exactly what it looks like it did to your system.

How to fix it:

  • Delete all sources from the other release of Ubuntu
  • Uninstall all packages that you installed from those wrong-version sources

Depending upon what you already installed, there may be no easy way to undo the damage. It requires patience and hard work by you...or a complete reinstall.

user535733
  • 62,253
  • I'll be needing to do a complete reinstall it seems, will try to reinstall those repositories first, thanks for the quick response – Haripal Baluja Dec 19 '17 at 20:50