portal-test-gtk3 command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

portal-test-gtk3: command not found

or when using sudo you get the following error message

sudo: portal-test-gtk3: command not found

Solutions to portal-test-gtk3: command not found

How To Fix portal-test-gtk3: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu portal-test-gtk3 is provided by libportal-tests-gtk3 package.

libportal-tests-gtk3 is:

libportal provides GIO-style C APIs for most Flatpak portals’ D-Bus interfaces. It is primarily intended for installation in Flatpak runtimes, where applications can use it to interact with portals; it can also be used to test the portal services.

See the xdg-desktop-portal package’s description for more information about portals.

This package contains the portal-test-gtk3 application, and will contain “as-installed” test programs if they are added.

To fix this problem, we can install more using the command below.

sudo apt-get -y install libportal-tests-gtk3

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install libportal-tests-gtk3.

sudo apt -y install libportal-tests-gtk3

Or if you have aptitude installed you can use the following command.

sudo aptitude install libportal-tests-gtk3

Summary

In this tutorial we learn how to fix portal-test-gtk3 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.