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ROS on Ubuntu 20.04 unable to locate package error

asked 2020-05-29 08:04:49 -0600

azamkhan1996 gravatar image

updated 2023-06-18 09:56:41 -0600

lucasw gravatar image

I have ubunto version 20.04 and I want to download ROS Melodic I have followed this instruction from

After "sudo apt install ros-melodic-desktop-full" command terminal is showing

Unable to locate package ros-melodic-desktop-full


Kindly help me with this

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answered 2020-05-29 08:22:39 -0600

gvdhoorn gravatar image

updated 2020-05-29 08:25:07 -0600

ROS Melodic is not supported on Ubuntu Focal (ie: 20.04).

Only ROS Noetic is supported on Ubuntu Focal.

The error message you quote is to be expected, as there are no Melodic packages available for Focal.

This is also mentioned on the installation page you link to:

ROS Melodic installation instructions

These instructions will install the ROS Melodic Morenia distribution, which is available for Ubuntu Artful (17.10), Bionic (18.04 LTS) and Debian Stretch, among other platform options.

Note how Ubuntu Focal is not mentioned anywhere.

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Asked: 2020-05-29 08:04:49 -0600

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Last updated: May 29 '20