Let's work through fixing those frustrating compilation errors step by step—most of them are simple syntax oversights that happen when adapting existing code:

1. Fix the Missing Document Class Command #

Your first line is missing a leading backslash, which is a critical mistake. LaTeX relies on \documentclass to define the document type, and without it, every subsequent command gets treated as plain text. That's why you're seeing all those "Missing \begin{document}" errors.

Original (broken):

documentclass[a4paper,landscape]{article}

Corrected:

\documentclass[a4paper,landscape]{article}

2. Replace HTML-Escaped Ampersands with Raw & #

In your \scores tabular command, you're using &#1 instead of just &. & is the HTML way to write an ampersand, but LaTeX uses plain & to separate table columns. This escaped version confuses LaTeX, triggering the "Misplaced alignment tab character" errors.

Fix every instance in the tabular:

\newcommand{\scores}[8]{ 
 \begin{tabular}{l r} 
 Cake (volume):& #1 table(s)\\Cake (taste):& #2\ding{72}\\Rest time:& #3\\Originality:& #4/10\\Hospitality:& #5\%\\Timeliness:& #6/10\\Luxury:& #7\ding{72}\\Prayerfulness:& #8/10\\ 
 \end{tabular} 
}

3. Verify the \ding Command is Supported #

The \ding{72} command comes from the pifont package. If you still get "undefined control sequence" errors for \ding after fixing the above, check that your include/libs.tex file includes:

\usepackage{pifont}

If it doesn't, add that line to libs.tex or directly to your main document's preamble.

4. Double-Check File Paths #

Make sure your include/libs.tex, include/colors.tex, and include/tikzcards.tex files are actually stored in an include folder in your Overleaf project. Overleaf is strict about file structure—incorrect paths will prevent LaTeX from loading the custom card commands, leading to more errors.

Full Corrected Main Code #

Here's your code with the first two critical fixes applied:

\documentclass[a4paper,landscape]{article} % Merge packages
\input{include/libs.tex} % Load colour definitions
\input{include/colors.tex} % Load card commands
\input{include/tikzcards.tex} % Dummy-Contents
\newcommand{\contentA}{Neunmalkluges Zitat\\mit Bezug zur Karte von einer fiktiven Figur.}
\newcommand{\contentB}{Fun: 80\\Holy: 100}
\newcommand{\contentC}{Oh hi.}
\newcommand{\scores}[8]{ 
 \begin{tabular}{l r} 
 Cake (volume):& #1 table(s)\\Cake (taste):& #2\ding{72}\\Rest time:& #3\\Originality:& #4/10\\Hospitality:& #5\%\\Timeliness:& #6/10\\Luxury:& #7\ding{72}\\Prayerfulness:& #8/10\\ 
 \end{tabular} 
}
\begin{document}
\begin{center}
\pagestyle{empty}
% V-Space-Korrektur bei langen Titeln
% \cardtitle{\vspace{-5mm}SEHR LANGER TITEL}
\begin{tikzpicture}
\cardbackground{img/Epping1.jpg}
\cardtypeEssex
\cardtitle{Epping}
\cardcontent{Morning of Feast of St Joseph; we set off.}{\scores{0}{0}{12h}{7}{83}{10}{2}{7}}
\cardprice{2}
\cardborder
\end{tikzpicture}
\end{center}
\end{document}

Once you apply these fixes, the compilation errors should clear up, and you can start expanding back to 30 cards.

内容的提问来源于stack exchange，提问作者Joshua Peters