Gfilui

I created an icon on the desktop and entered the following code:

[Desktop Entry]
Encoding=UTF-8
Name=XAMPP Control Panel
Comment=Start and Stop XAMPP
Exec=gksudo /opt/lampp/manager-linux-x64.run
Icon=/opt/lampp/htdocs/favicon.ico
Categories=Application
Type=Application
Terminal=false

When I launch the application I get "There was an error launching the application"

If I go into the terminal and type sudo /opt/lampp/manager-linux-x64.run, it works fine. I tried changing gksudo to sudo but that didn't work either.

What am I doing wrong?

This worked for me on Ubuntu 18.04.

First you need to install the package "nautilus-admin":

sudo apt-get update
sudo apt-get install nautilus-admin

Create a new file in "/usr/share/polkit-1/actions/xampp.policy" with:

sudo nano /usr/share/polkit-1/actions/xampp.policy

With this content:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE policyconfig PUBLIC
 "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN"
 "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
<policyconfig>

 <action id="org.freedesktop.policykit.pkexec.run-xampp">
 <description>Run the Xampp Control Panel</description>
 <message>Authentication is required to run the Xampp Control Panel</message>
 <defaults>
 <allow_any>no</allow_any>
 <allow_inactive>no</allow_inactive>
 <allow_active>auth_admin_keep</allow_active>
 </defaults>
 <annotate key="org.freedesktop.policykit.exec.path">/opt/lampp/manager-linux-x64.run</annotate>
 <annotate key="org.freedesktop.policykit.exec.allow_gui">TRUE</annotate>
 </action>
</policyconfig>

To end, create a new file or edit the destktop entry on /usr/share/applications/xampp-control-panel.desktop and replace Exec=gksudo /opt/lampp/manager-linux-x64.run with Exec=pkexec /opt/lampp/manager-linux-x64.run:

[Desktop Entry]
Encoding=UTF-8
Name=XAMPP Control Panel
Comment=Start and Stop XAMPP
Exec=pkexec /opt/lampp/manager-linux-x64.run
Icon=/opt/lampp/htdocs/favicon.ico
Categories=Application
Type=Application
Terminal=false

I hope it helps.