There are two ways to handle this problem:
(1) To install missing packages. This is explained in the very first tutorial. Please listen to it carefully and repeat whatever it demonstrates. You will have to do this for ALL missing packages.
(2) Extract "Code files" and use them. We provide in the "Code files" section all files required for the video. This section will be below the player. This is also explained in this tutorial: https://spoken-tutorial.org/watch/Spoken+Tutorial+Technology/Side+by+Side+Method/English/.
Spoken Tutorials are created for self learning. If you go through each tutorial systematically in the specified order, you will not run into such problems.