"Render mathematics" is inactive in Inkscape

I recently installed Inkscape on Ubuntu 20.04 LTS, and I'd like to use the builtin latex support, but when I go to Extensions > Render > Mathematics > pdflatex, the button is grey, so clicking triggers no event.

I installed texlive using the ctan installer and not via apt.

My inkscape version was installed using snap, so I replaced it with an apt install:

Remove the snap install : sudo snap remove inkscape Then install inkscape version 1.0 or higher :

sudo add-apt-repository ppa:inkscape.dev/stable
sudo apt update
sudo apt install inkscape 

Be sure to include the path to latex in your .bashrc file, and run inkscape from the command line : when you run inkscape from the Dock, it's harder to control the value of the PATH system variable.

You can install textext, which is not bundled in inkscape by default. It works for me.