More often than I wish I come across a post (mostly a question) which uses wrong version numbers of Ubuntu.
Examples:
- https://askubuntu.com/q/1031498/250300
- https://askubuntu.com/q/915444/250300
- How to install USB-to-Serial driver on Ubuntu 17?
- https://askubuntu.com/q/1008022/250300
- Unable to boot or start system after install ubuntu 16
- Can 18.04 be installed ov r 17.01 when the pc has Windows 10 also?
Please note that (unlike Windows, for example) Ubuntu versions use the form YY.MM where YY is the year and MM the month of release. Ubuntu is released twice a year regularly (April and October) and for each year, the versions x.04 and x.10 are different. Moreover, the versions 17.04 and 17.10, for example, are not closer to each other than 17.10 and 18.04.
If you use just e.g. 17 as a version number, we can just guess whether you mean 17.04 or 17.10. Sometimes the guess can be quite easy at the time of posting but the situation changes over the time as new releases come out and other ones cross EOL!
As you can see in the above examples, the questions lacking the full version number are often not answered. You should make your question as clear and specific as you can and a valid version number is a simple piece of help in making the question clear and answerable.