Comment 1 for bug 1198216

It looks as if you will need to transcode your files to another format - those are errors generated by ffmpeg, which is the library that provides format support for OpenShot. See below for more information of format support:

https://answers.launchpad.net/openshot/+faq/983

The message:

------------------------- ERROR 1 ------------------------------
Failed to import 'from openshot import main'
Error Message: cannot import name main
----------------------------------------------------------------

is unrelated to your issue, and isn't normally a problem.