Read/Write error (Natron 2.3.15)

Hello to all. I came from Sony Movie Studio and I’m giving the step to go further with effects.
After install the Natron 2.3.15 in Windows and Debian I get the same error in both: I cannot open or write (render?) a video. The error say that no plugin capable of encoding mp4 was found. (if I want to render). I install Natron 2.3.15 RC22 after make my research because some page mention a bug but not solution at all.
I’m missing something important in order to go inside the Natron environment?

Thanks in advance for any hint!

i think you should only work with image sequence in natron. you should read and write image sequence. video is problematic in natron.

  • Windows version?
  • Linux version? (and where did you get Natron)

My first attempt was on:
Windows 7 x64
debian-10.3.0-i386-xfce-CD-1

I get Natron from NATRON

I found this solution for the Windows 7 and works perfect in my case:

I’m very enthusiast starting putting my hands on Natron! Thanks to all the developers that work on it!

Regards
Manu.A