I know this is a very common occurence of the tables-related error, so thank you in advance for any help (I am getting very tired :-)).
I have this table that for some some reason refuses to compile. I think it did before, and I cannot see where the faulty change happened.
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\usepackage{multirow}
\usepackage{graphicx}
\usepackage{tabularx}
\usepackage[acronym]{glossaries}
\begin{document}
\newacronym{mno}{MNO}{Mobile Network Operator}
\newacronym{sdn}{SDN}{Software Defined Networking}
\newacronym{nfv}{NFV}{Network Function Virtualization}
\newacronym{vnf}{VNF}{Virtualized Network Function}
\newacronym{nve}{NVE}{Network Virtualization Environment}
\begin{table*}[t]
\centering
\caption{\gls{sdn} and \gls{nfv} multitenant environment fault management issues and consequences}
\label{TAB-issues}
\resizebox{\textwidth}{!}{
\begin{tabular}{c|l|l|l|l|l|}
\cline{2-6}
\multicolumn{1}{l|}{} & \multicolumn{1}{c|}{\textbf{ISSUES}} & \textbf{\gls{sdn}?} & \multicolumn{1}{c|}{\textbf{\gls{nfv}?}} & \textbf{\begin{tabular}[c]{@{}l@{}}Multi-\\ tenant?\end{tabular}} & \multicolumn{1}{c|}{\textbf{CONSEQUENCES}} \\ \hline
\multicolumn{1}{|c|}{\multirow{3}{*}{\textbf{Scalability}}} & 1) Huge requests to the \gls{sdn} controller & \checkmark & & Limited \gls{sdn} controller capacity \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 2) Huge number of faults and alarms & \checkmark & \checkmark & \checkmark & Alarms correlation and fault detection \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 3) A growing number of tenants and resources affectation & & & \checkmark & Optimization of resources allocation \\ \hline
\multicolumn{1}{|c|}{\multirow{3}{*}{\textbf{Topology}}} & 4) Dynamic topology & & & & Difficulty of modeling the network topology \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 5) Coexistence of Physical and virtual entities & \checkmark & \checkmark & \checkmark & Virtual and physical faults dependencies \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 6) Multi-tenants & & & \checkmark & Lack of network visibility \\ \hline
\multicolumn{1}{|c|}{\multirow{2}{*}{\textbf{Security}}} & 7) Attack on switches or controllers or control plane & \checkmark & & & Whole network disruption \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 8) Multi-tenant sharing the same infrastructure & & & \checkmark & Multi-tenants traffic isolation \\ \hline
\multicolumn{1}{|c|}{\multirow{5}{*}{\textbf{Fault Tolerance}}} & 9) A single \gls{sdn} controller a single point of failure & \checkmark & & & \gls{sdn} controller failure implies the,whole network failure \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 10) Link failure & \checkmark & \checkmark & & Loss of network connection \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 11) End to End service chain crash & & \checkmark & & Rapid detection and recovery actions for clients services \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 12) Physical and virtual faults & \checkmark & \checkmark & & A physical failure may impact multiple virtual entities \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 13) Multi-tenants faults & & & \checkmark & The necessity of tenants faults isolation and notification \\ \hline
\multicolumn{1}{|c|}{\multirow{3}{*}{\textbf{Performance}}} & 14) \gls{sdn} controller and switch performance &\checkmark & & & Choose the best network configurations to have a high network resilience \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 15) Running environments & &\checkmark & & The performance of the \gls{vnf} depends on the running environment \\ \cline{2-6}
\multicolumn{1}{|c|}{} & 16) Migration of tenants applications or \gls{vnf} & & \checkmark & \checkmark & Keep the same performance while migrating a tenant application or a \gls{vnf} \\ \hline
\end{tabular}
}
\end{table*}
\end{document}
As you can see, the error is not the lack of packages or the acronyms (at list I think so), trying it with sharelatex or overleaf returns the error:
./main.tex:42: Undefined control sequence.
<argument> ... \gls {sdn} controller & \checkmark
& & Limited \gls {sdn} con...
l.42 }
Which is really hard to work around :-(.
Thanks for any inspiration on this!
Best Answer
As already mentioned in the comments, you recieve the error because the command
\checkmarkis not defined. By loading a packages that defined a\checkmarkcommand, such asamssymb, one can make your code compilable.Since you have a quite wide table, I recommend against using
resizeboxas it leads to illegible small and inconsistent font size. In the following MWE I have changed the general layout of the table to make it fit onto one page.In comparison to your original code I made the following changes:
booktabspackage that add an appropriate white space around them.\rotheadis taken from here: https://tex.stackexchange.com/a/429133/134144)threeparttablein order to put long text in the 'multitenant' column into a tablenote.Xcolumn from thetabularxpackage in order to make the table as wide as the textwidth.