File `data.csv' already exists on the system

Question

Why does this Warning appear when using filecontents? : File `data.csv' already exists on the system. Does anyone know how i can remove this warning?

\begin{filecontents*}{data.csv}
a,b,c,d
1,4,5,1
2,3,1,5
3,5,6,1
4,1,4,9
5,3,4,7
\end{filecontents*}
\begin{tikzpicture}
\begin{axis}
\addplot table [x=a, y=c, col sep=comma] {data.csv};
\end{axis}
\end{tikzpicture}

you can force filecontents to overwrite the file with \begin{filecontents*}[overwrite]{data.csv} if you are sure that you want that. — Ulrike Fischer, Jul 28 '22 at 12:12
Thanks for your reply! I have tried that before but the warning is still not gone :/ — Haroun Al-Tayi, Jul 28 '22 at 12:21
if you get really a message for data2.csv (and not data.csv) you will have to find the place where this file is written. — Ulrike Fischer, Jul 28 '22 at 12:27

score 1 · Accepted Answer · answered Jul 28 '22 at 14:32

That's by design. You'd need to rewrite the definition of \filec@ntents to omit the warning. Using a patch is not really feasible, because this definition is given in a very particular category code context.

Using silence (besides being a bit risky) isn't possible either, because it only silences warnings, but this message is in the “info” category (but differently from other informational messages, it also appears on the console and not only in the log file).

I find much more annoying the pgfplots warning

Package pgfplots notification 'compat/show suggested version=true': document ha
s been generated with the most recent feature set (\pgfplotsset{compat=1.18}).

that's useless and unformatted.

File `data.csv' already exists on the system

1 Answers1