5.32.3 Can you answer these questions?

5.32.3.1 Fatal error occurred, no output PDF file produced! File sourced from R Studio
5.32.3.2 Commutative Diagram not working for slides
5.32.3.3 Predetermine the number of nested levels before assigning label types (followup)
5.32.3.1 Fatal error occurred, no output PDF file produced! File sourced from R Studio

https://tex.stackexchange.com/landing/r/digest?cta=question&id=508542

I am doing an assignment and have copied and pasted some example code from a previous assignment to get started. The fatal error occurs when I try to compile the PDF. I have pasted both my code and  ... 
[pdf]
 
asked by Gabriella Rivera https://tex.stackexchange.com/landing/r/digest?cta=user&id=197592 1 vote
answered by Partha D. https://tex.stackexchange.com/landing/r/digest?cta=user&id=146828 0 votes
5.32.3.2 Commutative Diagram not working for slides

https://tex.stackexchange.com/landing/r/digest?cta=question&id=508420

I asked this question some times ago and the given solution perfectly worked for me. Now I am trying to draw the same thing in a slide and it's not working. 
Here's the code I used: 
\begin{frame} 
... 
[tikz-cd] [commutative-diagrams] [slideshow]
 
asked by Larsson https://tex.stackexchange.com/landing/r/digest?cta=user&id=174046 1 vote
5.32.3.3 Predetermine the number of nested levels before assigning label types (followup)

https://tex.stackexchange.com/landing/r/digest?cta=question&id=508327

In this thread, @schtandard taught me how to predetermine whether I had 4 enumerate levels or 3, and condition on this how I supecified my labels.  His/her code worked beautifully so I tried to extend  ... 
[counters] [enumitem]
 
asked by Leo Simon https://tex.stackexchange.com/landing/r/digest?cta=user&id=35808 1 vote