You can try sudo apt-get update first. I assume Apache is a third party vendor so this would be the reason Ubuntu cannot find the package. Try going to the Apache site itself and look for packages you can download and open with Ubuntu that are for Ubuntu or Linux. Then try the sudo apt-get install <program> Hope this helps. Share
16.04.2021 · E: Unable to locate package inetutils-ping. 七，在这个命令提示下，可以看到有两个安装包可以选择 # apt install ping Reading package lists... Done Building dependency tree Reading state information... Done Package ping is a virtual package provided by: inetutils-ping 2:1.9.4-11 iputils-ping 3:20190709-3 You should ...
17.11.2013 · There are many questions about this topic. Here I provide a basic/general answer. When apt-get install is unable to locate a package, the package you want to install couldn't be found within repositories that you have added (those in in /etc/apt/sources.list and under /etc/apt/sources.list.d/).. The following (general) procedure helps to solve this:
14.04.2021 · If Ubuntu Packages website also shows that the package is not available for your specific version, then you’ll have to find some other ways to install the package. Take Shutter for example. It’s an excellent screenshot tool …
So apt couldn’t find the nmap package from its archives. We know that apt uses the source lists under /etc/apt/sources.list to locate packages. So open the same with your favorite text editor and with superuser privileges. Here we should find something like this :
Apr 14, 2021 · Scroll down a bit on this page and go to the Search part. You’ll see a keyword field. Enter the package name (which cannot be found by your system) and then set the correct distribution codename. The section should be ‘any’. When you have set these three details, hit the search button. Ubuntu Package Search.