I'd like to play a bit with the animate package but even the absolutely minimal example below gives me an error message :
\documentclass{standalone}
\usepackage{animate}
\begin{document}
\end{document}
Here is the beginning of the log file
! Undefined control sequence. l.3 \ExplSyntaxOn The control sequence
at the end of the top line of your error message was never
\def'ed. If you have misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
! Undefined control sequence.
l.4 \bool
_if:nTF{
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.
! Missing $ inserted.
<inserted text>
$
l.4 \bool_
if:nTF{
I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.
! LaTeX Error: Missing \begin{document}.
See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
...
l.4 \bool_
if:nTF{
You're in trouble here. Try typing <return> to proceed.
If that doesn't work, type X <return> to quit.
LaTeX Font Info: External font `cmex10' loaded for size
(Font) <7> on input line 4.
LaTeX Font Info: External font `cmex10' loaded for size
Thanks for any tips !