dpkg-query: no packages found matching libgl1-mesa-dev
E: The repository 'http://security.ubuntu.com/ubuntu eoan-security Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu eoan Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu eoan-updates Release' does not have a Release file.
E: The repository 'http://archive.ubuntu.com/ubuntu eoan-backports Release' does not have a Release file.
WARN: fontconfig/2.13.91: requirement freetype/2.10.4 overridden by openscenegraph/3.6.5 to freetype/2.10.2 
opengl/system: ERROR: while executing system_requirements(): Command 'sudo -A apt-get update' failed
ERROR: Error in system requirements