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Today we are going to Resolving “Unable to Locate Package” Error in Ubuntu. When using Ubuntu or any Debian-based Linux distribution, you may encounter the frustrating “Unable to locate package” error when attempting to install software.

This error message indicates that the package you are trying to install cannot be found in the official repositories. Typically, this issue arises due to typos in the package name or problems with the package sources.

In this article, we will explore the common causes of the “Unable to locate package” error and guide you through the steps to resolve it effectively.

Also Read: How to install composer using command line in Ubuntu?

Verify Package Name:

The most common reason for the error is entering an incorrect package name. It is essential to double-check the package name before attempting to install it. A small typo can lead to the package not being found.

To ensure the correct package name, you can use the apt search or apt-cache search command to search for packages related to your query.


sudo apt update
sudo apt-cache search package_name

Update Package Lists:

Outdated package lists can also lead to the “Unable to locate package” error. Before installing any new package, it is crucial to update the local package lists to ensure you have the latest information on available packages.


sudo apt update

Also Read: How to Install CyberPanel on Ubuntu 18.04 LTS: A Step-by-Step Guide

Check Software Sources:

Another common cause of the error is misconfigured or incomplete package sources. Ensure that your system’s software sources are correctly set up and enabled.

You can check the software sources by navigating to “Software & Updates” from the Ubuntu Software Center or by editing the /etc/apt/sources.list file.

Enable Universe and Multiverse Repositories:

Some packages are not available in the main repositories but are found in the “universe” or “multiverse” repositories.

If you receive the error for a package, check if these repositories are enabled in your software sources.

Example (to enable universe repository):

sudo add-apt-repository universe
sudo apt update

Check for Spelling and Case Sensitivity:

Package names are case-sensitive in Ubuntu. Ensure that you use the correct capitalization when specifying the package name.

Additionally, check for any spelling mistakes in the package name.

Also Read: Installing the latest version of PHP (8.x) on Ubuntu

Refresh Package Database:

Sometimes, the package information on your system might be outdated or corrupted.

To fix this, you can refresh the package database by running:

sudo apt-get update --fix-missing
sudo apt-get update --fix-missing && sudo apt-get upgrade

Clean and Autoremove:

Cleaning up unused packages and performing an autoremove can help resolve issues with the package management system.

sudo apt-get autoclean
sudo apt-get autoremove

Also Read: Setting Up a Dual Boot: Installing Ubuntu alongside Windows


The “Unable to locate package” error in Ubuntu can be easily resolved by verifying the package name, updating package lists, and ensuring proper software sources configuration.

By following the troubleshooting steps mentioned in this article, you should be able to successfully install the desired package and continue with your Ubuntu journey without any hindrance. Happy package installation!

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