I have Elementary OS 8 installed. PIP is installed.
I installed KDEnlive. In the settings I try to add enviroment. But I get an error (on the screen) " Cannot find pip3, please install it on your system.
How can I fix this?
If already installed, check it is installed in a directory listed in PATH environment variable"
Okay, this is not really a KDE issue, as it pertains to your distribution, but here goes:
You need to install pip3 (i.e. pip for Python 3) from your distro’s software repositories. Try with the graphical software manager, if not, as Elementary is based on Ubuntu, try
sudo apt update
apt search pip
from a terminal. This will show you your options. It will be a package called something like python3-pip.
When you have located the package, install it with
Please read through it. It should solve your problem.
Bear in mind Flatpaks get executed in a container environment and cannot always reach resources outside their container, hence the problem you are seeing.
If I uncheck the box, what should work or not work?
I just want to try how enviroment works.
And not to clutter the OS with unnecessary libraries. )
So I unchecked the box and restarted the application: