# Researching references for common Ubuntu problems

Many problems on this website create the appearance that something is missing from Ubuntu and that a remedy might involve sudo apt install. Unfortunately many posted solutions do not have references. For example is the following.

askubuntu has a web page for the following problem.

Gtk-Message: Failed to load module "canberra-gtk-module"


The solution with the most up-votes does not seek to install using the same string that is cited in the error message. In other words the answer is not sudo apt install canberra-gtk-module. The solution with the most up-votes is somewhat similar to that but not exactly. Since it is not exactly that, ideally the correct answer or the most up-voted answer should have a reference to a canonical source.

How can I independently verify via referencing canonical sources that the most up-voted answer is the correct answer?

• I don't think there are "canonical sources" to reference on this. The commands are different because some prefer apt while others prefer apt-get. Welcome to the maze of linux uniformity. As time progressed, and gtk3 became prevalent, canberra-gtk3-module became available, whereas canberra-gtk-module is gtk2. – mikewhatever Dec 9 '20 at 21:02
• @mikewhatever That some people use apt-get is not the only difference. – H2ONaCl Dec 9 '20 at 21:16
• The shift from apt-get to apt was introduced in Ubuntu 16.04. itsfoss.com/apt-vs-apt-get-difference – wyphan Dec 9 '20 at 21:23
• @wyphan I have not encountered advice that apt-get is still useful for the vast majority of users so I always use apt now. – H2ONaCl Dec 9 '20 at 21:25
• There was apt-get when I started with Ubuntu, and apt was added later. There was no shift, as apt-get is still as useful as before, so why change. – mikewhatever Dec 9 '20 at 21:30
• If an answer would be improved with a reference link, feel free to propose an edit, or write a new up-to-date answer, or leave a comment suggesting specific improvements. If an answer has, over time, become misleading or counterproductive but remains highly voted, please flag it.. – user535733 Dec 9 '20 at 21:48
• For example, I answered a popular question back in 2012, about Ubuntu 11.10. Does this answer still apply to Ubuntu 20.10? Is it my responsibility to check? Every release? – waltinator Dec 9 '20 at 23:45
• @mikewhatever The most upvoted answer at the link uses apt and I also use apt so the difference does not arise from the installation program. This question is about the package names. – H2ONaCl Dec 20 '20 at 3:01