Je souhaite installer les logiciels doxygen et graphvi pour mes recherches. J'ai utilisé la commande
sudo apt-get install doxygen graphvizalors il renvoie ces erreurs :
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package graphviz is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Unable to locate package doxygen
E: Package 'graphviz' has no installation candidateComment puis-je résoudre ce problème ? Merci d'avance
