Graphics, Figures & Tables ⇒ Longtable And Illegal Unit Of Measure Error

[rosspenny83]

Hi all,

Appreciate most times a MWE is required for these questions, but I'm not even sure what code to include from a fairly large thesis file set. My question surrounds the use of caption in the longtable package.

Code: Select all

\usepackage{longtable}
\usepackage{caption} %both have been called in the preamble

I don't see anywhere in the preamble where

Code: Select all

\captionsetup

has been called.

I want to build a single column, multi-page longtable with a caption. I can build the table I want using the normal table functions, but without the multi-page layout so I know the formatting of that is ok. However the caption is throwing up an error that I just can't work out.

At a basic level:

Code: Select all

\begin{longtable}{c}
	\caption{Here is my first table...}\\
\end{longtable}

Gives me the error ! illegal unit of measure (pt inserted).<to be read again>{\caption[Here is my first table...}....

I've tried some different guesses at inserting the

Code: Select all

\captionsetup

in the preamble and within the longtable environment with no success. Really I'm looking for guidance on where I can find the resource to solve this quicly rather than an answer - unless it is straightforward.

Any help is much appreciated.

Thanks

[Ijon Tichy]

I cannot reproduce the error using the code snippets and information from your question:

Code: Select all

\usepackage{longtable}
\usepackage{caption}

\begin{document}
\begin{longtable}{c}
  \caption{Here is my first table...}\\
\end{longtable}
\end{document}

With up-to-date TeX Live 2019 this compiles without any error or warning message. So, please show us a minimal working example, that can be used to reproduce the problem.