Error at compiling example from the Manual tikz-network

[DiegoBneiNoah]

As per example on page 26 of the manual (https://github.com/hackl/tikz-network/) when doing latexmk -pdflua -pvc or latexmk -pdfxe -pvc I get the following error below. Note: already tried #5:

! Package xkeyval Error: `R' undefined in families `vertex'.

See the xkeyval package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              

l.6 \Vertices[RGB]{data/vertices_RGB.csv}

?

MWE:

\documentclass{article}
\usepackage{tikz-network}
\thispagestyle{empty}
\begin{document}
\begin{tikzpicture}
\Vertices[RGB]{data/vertices_RGB.csv}
\end{tikzpicture}
\end{document}

[hackl]

Unfortunately, I was not able to reproduce this error. In my case (Ubuntu 18.4, latexmk version 4.65) both options (latexmk -pdflua -pvc and latexmk -pdfxe -pvc as well as latexmk -lualatex -pvc and latexmk -xelatex -pvc) worked.

Please, can you provide me with further details? (e.g. mail me the log file)

Note: I used the follwoing files:

test.tex

\documentclass{article}
\usepackage{tikz-network}
\thispagestyle{empty}
\begin{document}
\begin{tikzpicture}
\Vertices[RGB]{test_vertices_RGB.csv}
\end{tikzpicture}
\end{document}

and test_vertices_RGB.csv

id, x, y ,size, color,opacity,label, R , G , B
 A, 0,  0, .4 , green,  .9   ,  a  ,255,  0,  0
 B, 1, .7, .6 ,      ,  .5   ,  b  ,  0,255,  0
 C, 2,  1, .8 ,orange,  .3   ,  c  ,  0,  0,255
 D, 2,  0, .5 ,   red,  .7   ,  d  , 10,120,255
 E,.2,1.5, .5 ,  gray,       ,  e  , 76, 55,255

[TorbjornT]

I can reproduce it with an up to date TeX Live 2019, using pdflatex, xelatex and lualatex. Log file from pdflatex, aborted run after first error: https://gist.github.com/TorbjornT/8e1df89f072e47a186a5a78965815e47

[TorbjornT]

On the other hand it worked in an old Overleaf project I had lying around where TeX Live 2017 was used, I'm guessing you don't have a fully updated system either. Log file from TL17 on Overleaf: https://gist.github.com/TorbjornT/dbd29fa3dc4ecc256773ed0a88a0572e

[u-fischer]

The problem are the spaces in the header. Due to a change in etoolbox (it uses \ifstrempty instead of \ifblank internally in a command), datatool is more picky here now. If you change the header to

id,x,y,size,color,opacity,label,R,G,B

it compiles again.

[DiegoBneiNoah]

As @u-fischer pointed out here and at https://tex.stackexchange.com/a/502074/178949, everything revolves around spacing formatting for the vertices_RGB.csv header although it has adaptations as indicated by @u-fischer in the same issue mentioned in TeXStack . If there are changes in the package to allow for .csv file header spacing, it would be good to avoid interrupting the PDF file generation work, as it is easy to forget or not realize the spacing at the time of producing the .csv file. Just for science the version I use is TeX Live 2019 / Arch Linux.

[hackl]

Thanks for your help and pointing this out. In fact, there are problems with the new 2019 TeX Live version. I will try to fix this issue as soon as possible.

[hackl]

The issue was fixed in commit 6bfef6e. Now CSV files can be used as usual.

[DiegoBneiNoah]

The issue was fixed in commit 6bfef6e. Now CSV files can be used as usual.

Greatfull. As soon as I can I will test the changes to my Arch Linux / TeX Live 2019