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Author: Admin | 2025-04-28
Sources.list file starting from deb:deb http://http.kali.org/kali kali-rolling main contrib non-free non-free-firmware" | sudo tee /etc/apt/sources.listOnce the repository is added, you can save the file using CTRL+X, then add Y to approve the changes in the file and pressing the Enter button to close the file.Alternatively, the following command can also be used to add the repository to Kali Linux system:echo "deb http://http.kali.org/kali kali-rolling main contrib non-free non-free-firmware" | sudo tee /etc/apt/sources.listStep 4: Update Kali Linux RepositoryOnce you added the repository, update your Kali Linux system using the below-given command to ensure the changes are successfully applied:Step 5: Install the Package on Kali LinuxAfter updating the repository without any warning or error, you can reinstall that application from the apt install command. Here, I have installed VLC media player from the official Kali Linux repository, which was causing error in the previous run:Note: If you are still encountering unable to locate package error on Kali Linux, then you should add the package repository to the system. The reason is that the package won’t be there in the system repositories currently added to your system. You can find the repository with a GPG key to install a specific package on the official website of that package. Just add a repository and GPG key, then update the repository and install that application through the apt install command with the package name.Bonus Method: How to Fix “sudo: add-apt-repository command not found” on Kali Linux Sometimes, the repositories for installing a package are added to the Kali Linux system with the add-apt-repository command. However, this command will not work by default on some Linux systems, including Kali Linux because of dependencies conflict or compatibility issues. When you try to add a repository to Kali Linux with the add-apt-repository command, you will get the following error:You can fix this error on Kali Linux and other Linux distribution by installing the following dependencies on Kali Linux:sudo apt install software-properties-common python3-launchpadlib -yAfter that, you can use the add-apt-repository command to add any repository, install packages from that repository and fix unable to locate package error on Kali Linux.As
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