errors
It would be nice if Overleaf could compile files that had a few errors in them. This is already possible to do in Texworks: you press control+T, it hints at errors and you say compile anyway. You hold the enter key long enough and you get through all the errors.
Overleaf's tolerance for errors is very low. Is there something that I can do to override errors in overleaf?
Here is your example as a running document. Coloring tables needs a \usepackage[table,<named color list(s)>]{xcolor}. Next time you shouldn't use the a0poster documentclass. It is easier to find errors with simple classes.
\documentclass[landscape,a0b,final]{a0poster}
\usepackage{subfig}
\usepackage{multicol}
\usepackage{graphicx}
\usepackage[table,dvipsnames,svgnames,x11names]{xcolor}
\setlength{\columnsep}{3cm}
\setlength{\columnseprule}{2mm}
\setlength{\parindent}{0.0cm}
\newenvironment{poster}{%
\begin{center}
\begin{minipage}[c]{0.98\textwidth}
}{%
\end{minipage}
\end{center}
}
\newenvironment{pcolumn}[1]{%
\begin{minipage}{#1\textwidth}
\begin{center}
}{%
\end{center}
\end{minipage}
}
\begin{document}
\begin{poster}
\begin{center}
\begin{pcolumn}{0.98}
\Large
\textbf{Parallels Table}
\vspace{0.5cm}
\rowcolors{1}{LightBlue1}{DeepPink1} %Gives me errors
\begin{tabular}{|c|c|c|}
\multicolumn{3}{c}{\textbf{$Data_1$}} \\\hline
\textbf{ID} & \textbf{$Type_1$} & \textbf{$Type_2$} \\
$1$ & $I_{11}$ & $I_{12}$ \\\hline
\end{tabular}
\hspace{2cm}
\rowcolors{1}{LightBlue}{DeepSkyBlue} %Gives me errors
\begin{tabular}{|c|c|c|}
\multicolumn{3}{c}{\textbf{$Data_2$}} \\\hline
\textbf{ID} & \textbf{$Type_1$} & \textbf{$Type_2$} \\
$G$ & $n_{G1}$ & $n_{G2}$ \\\hline
\end{tabular}
\end{pcolumn}
\end{center}
\end{poster}
\end{document}
There are two things causing errors:
In the center environment you have an opening brace ({) without a closing brace. As it stands, you can just remove that brace.
titlesec is apparently not compatible with the KOMA-classes. I don't know if there is a way to use both, but the simplest solutions is either
Remove \usepackage[clearempty]{titlesec}, or
Use book instead of scrbook.
In addition, Overleaf doesn't seem to be able to deal with biblatex. Removing that package, and it compiles fine. This is a bit strange, considering that biblatex isn't used at all, and there are no errors in the .log file or the .blg file. I have no idea what's going on, at the moment. Even this minimal file makes Overleaf throw an error, even though there is no actual error:
\documentclass{article}
\usepackage{biblatex}
\begin{document}
abc
\end{document}
I sent a message to Overleaf about this.
Best Answer
I don't know exactly what OverLeaf does. I can confirm that
fails to compile with an error. Initially, I thought that this must be because OverLeaf used the
--halt-on-erroroption becausepdflatex --halt-on-errorfails to compile with an error on the command line, too.However, changing
to
causes compilation to merely pause before continuing when compiling locally, even with
--halt-on-error. However, on OverLeaf, compilation still fails with an error.The log file begins with this:
In contrast, compiling locally:
The
file:line:error style messages enabled.is just because OverLeaf must pass--file-line-errortopdflatex. This doesn't stop\batchmodecontinuing compilation - at least, it doesn't do that locally. Nor does adding--shell-escapewhich explains the absence ofrestrictedin OverLeaf's log. (Presumably, they are restricting things globally regardless.) None of this is surprising - it would be odd if these options made a difference. I'm just recording the fact that I double-checked just to be safe.I'm guessing that some other process is interrupting compilation in case of error, although it is always possible, I guess, that the installation has been modified to do this no matter what. But I'd guess an independent process, since they are using such a process to interrupt compilation in other cases e.g. if compilation takes too long, it will be terminated. So I'm guessing that their monitoring process also stops compilation in the case of error and regardless of anything the user does.
This is only a guess, but, if it is right, then there is nothing you can do unless you can persuade OverLeaf to change the way that process works.
I should say that I'm not at all sure about any of this and mainly post this so that the more knowledgeable may see what OverLeaf is doing and provide interpretation and explanation!