\documentclass[a4paper]{scrreprt}
\usepackage{tcolorbox}
\usepackage{todonotes}
\usepackage{tabu,makecell}
\begin{document}
\noindent \begin{tabu} to \textwidth {@{}lXX}
normal line & A & B \
line with makecell & \makecell[tl]{A\C} & \makecell[tl]{B\D\E}
\end{tabu}
\todo{To Do: ...}
\end{document}
When I exclude the line with \makecell, everything works. Also when I exclude the packages todo and tcolorbox (and of course, the line with \todo command, but keep the line with \makecell), everything works.
The problem occurs when I include at least one of the packages tcolorbox or todonotes. Then I got the following error:
My MWE:
When I exclude the line with \makecell, everything works. Also when I exclude the packages todo and tcolorbox (and of course, the line with \todo command, but keep the line with \makecell), everything works.
The problem occurs when I include at least one of the packages tcolorbox or todonotes. Then I got the following error:
Perhaps someone know how to fix this? I would very much appreciate.