Please, I've tried to apply the solutions in this website to solve this issue but I've got nothing.
I literally do not know how can I solve it.
Please, any help will be highly appreciated it.
%% ----------------------------------------------------------------
%% Thesis.tex -- MAIN FILE (the one that you compile with LaTeX)
%% ----------------------------------------------------------------
% Set up the document
\documentclass[a4paper, 11pt, arial, oneside]{Thesis} % Use the "Thesis" style, based on the ECS Thesis style by Steve Gunn
\usepackage{charter}
\usepackage[scaled=0.92]{helvet}
%\usepackage [T1] {fontenc}
%\renewcommand\familydefault{phv}
%\graphicspath{{figs/}} % Location of the graphics files (set up for graphics to be in PDF format)
% Include any extra LaTeX packages required
\usepackage[square, numbers, comma, sort&compress]{natbib} % Use the "Natbib" style for the references in the Bibliography
\usepackage{verbatim} % Needed for the "comment" environment to make LaTeX comments
\usepackage{vector} % Allows "\bvec{}" and "\buvec{}" for "blackboard" style bold vectors in maths
%\hypersetup{urlcolor=blue, colorlinks=true} % Colours hyperlinks in blue, but this can be distracting if there are many links.
\usepackage[toc,page]{appendix}
\usepackage{graphicx}
\usepackage{romannum}
\usepackage{enumerate}
%\usepackage{booktabs}
%\usepackage[hmargin={30mm,25mm},vmargin=25mm]{geometry}
%\usepackage{array,ragged2e}
%\newcolumntype{R}[1]{>{\RaggedRight}p{#1}}
%\usepackage{enumitem}
%\usepackage{etoolbox}
%\AtBeginEnvironment{table}{%
% \setlist[itemize]{ nosep, % <-- new list setup
% leftmargin = *,
% before = \vspace{-0.6\baselineskip},
% after = \vspace{-\baselineskip}
% }
%}
%\usepackage{showframe}
%\usepackage{geometry}
\usepackage{ragged2e, tabularx}
\usepackage{array, booktabs, longtable}
\newcolumntype{R}[1]{>{\RaggedRight\hspace{0pt}}p{#1}}
\usepackage[skip=1ex,labelfont=bf,font=small]{caption}
\usepackage[shortlabels]{enumitem}
\usepackage{etoolbox}
\AtBeginEnvironment{longtable}{%
\small % for better fit text into cells
\setlength{\LTcapwidth}{\linewidth} % that caption width is equal table width
\setlist[itemize]{ nosep, % <-- new list setup
leftmargin = *,
before = \vspace{-\baselineskip},
after = \vspace{-\baselineskip}
}
}% end of AtBeginEnvironment
\AtBeginEnvironment{table}{%
\setlist[itemize]{nosep,
wide,%leftmargin = *,
before = \vspace{-\baselineskip},
after = \vspace{-\baselineskip}
}
}% end of AtBeginEnvironment
\newcolumntype{L}{>{\RaggedRight\setlength\parskip{0.2\baselineskip}\arraybackslash}X}
\setlength\extrarowheight{1pt}
\usepackage[space]{grffile}
\usepackage{latexsym}
\usepackage{textcomp}
\usepackage{longtable}
\usepackage{multirow,booktabs}
\usepackage{amsfonts,amsmath,amssymb}
\usepackage{url}
\usepackage{hyperref}
\hypersetup{colorlinks=true,pdfborder={0 0 0},linkcolor=blue,urlcolor=blue,citecolor=red}
% You can conditionalize code for latexml or normal latex using this.
\newif\iflatexml\latexmlfalse
\providecommand{\tightlist}{\setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}%
\DeclareGraphicsExtensions{.pdf,.PDF,.png,.PNG,.jpg,.JPG,.jpeg,.JPEG}
%\usepackage[utf8]{inputenc}
\usepackage[british]{babel}
% correct bad hyphenation here
\hyphenation{op-tical net-works semi-conduc-tor}
\usepackage{siunitx} % For units
\newcommand\mmfeed[1]{\textcolor{red}{#1}}
\usepackage{xcolor}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{lipsum}
\captionsetup[figure]{labelfont={bf,small},textfont={small}}
\captionsetup[subfloat]{labelfont={bf,small}, textfont={small}, subrefformat=parens} %<-----designing subcaption
\newcommand{\myfigref}[2]{~\ref{#1}.\subref{#2}}% <---- a new macro for referring to a subfigure
%
%\newpage
%\bibliographystyle{plain}
%\bibliography{bibliografia}
% Change the text font
\renewcommand{\rmdefault}{phv} % Arial
\renewcommand{\sfdefault}{phv} % Arial
%
\usepackage{multirow}
\usepackage{cleveref}
% I added many usepackages
%% ----------------------------------------------------------------
\begin{document}
\begin{table}[htb]
\caption{Parameter settings of the present study}
\label{5.1}
\centering
% \resizebox{\columnwidth}{!}{%
\begin{tabularx}{\textwidth}{ p{6cm} p{5cm} c }
%\hline
\toprule
\textbf{The image processing stage} & \textbf{Parameter} & \textbf{Value} \\
%\hline
\midrule
Post-processing of the shadow mask
&
\begin{itemize}
\item Intensity threshold ($T_{I}$)
\item Ratio threshold ($T_{R}$)
\item Height threshold ($T_{height}$)
\end{itemize}
&
\begin{itemize}
\item Intensity threshold ($T_{I}$)
\item Ratio threshold ($T_{R}$)
\item Height threshold ($T_{height}$)
\end{itemize}
\\
\bottomrule
\end{tabularx}
% }
\end{table}
\end{document}
Best Answer
You can have a list environment in a table cell only if the column has a paragraph-like specifier (
p, m, b, Xand so on). The problem cmes from you last column, which is not in paragraph mode.I simplified the code for your table, defining an
Lcolumn type, which is, roughly, anXcolumn type entering in an ad hoc itemize on entering a cell, and ending itemize on leaving the cell, so you only have to type the items.