[Tex/LaTex] Preamble not found in subfile when using \input{Preamble.tex} in main file

inputpreamblesubfiles

When using the following for my main TeX file Graduation_report.tex, in the main folder:

\documentclass[11pt,a4paper]{report}

\input{Preamble.tex}

\begin{document}

\subfile{Introduction/Introduction.tex}

\end{document}

and the following for my subfile Introduction.tex (which is in the folder Introduction)

\documentclass[../Graduation_report.tex]{subfiles}

\begin{document}

...

\end{document}

I get the error 'Preamble.tex not found'. However, when I just paste my Preamble in the main file (Graduation_report.tex), instead of using \input, it works. Is there a solution to input my preamble in the main file? So that I can create my preamble in a separate TeX file and still run my subfiles separately with the same preamble.

Best Answer

Solved it by defining the input path for the preamble in my main file.

\documentclass[11pt,a4paper]{report}

% Define path Preamble
\makeatletter 
\def\input@path{{../}} 
\makeatother
\input{Preamble.tex}

\begin{document}

\tableofcontents
\subfile{Introduction/Introduction.tex}

\end{document}

Related Solutions

[Tex/LaTex] Subfiles in subdirectory, file not found

I came accross the same problem you did when i compiled my first multi-file document using the subfiles package.

Since I am not a long term latex user i do not fully understand the mechanics of the problem but I suspect the problem is that when you compile the "slave" file (in your case 'subpiece1.tex') your compiler searches for the custom package in the same directory as 'subpiece1.tex' and the other default tex directories.

I managed to solve the problem by changing the \usepackage{} command to also include a relative path that will be common for both the "master" and the "slave" .tex files.

What you need to do:

Add a folder in your home directory for the master document. i.e. your home directory should have folders: master folder (containing main.tex), tex folder, images folder.
Edit your main.tex folder so that the \usepackage{} command includes the relative path to 'styling.sty' (it should read \usepackage{../styling} with no file extension)
If you did step one correctly 'styling.sty' will have the same relative path from 'main.tex' and 'subpiece1.tex' (the relative path for both is one folder up. This is achieved by '../' in the \usepackage{} command)
Update all the other relative file paths so they read as required.

main.tex now reads

\documentclass[11pt,letterpaper]{article}
\usepackage{../styling} %includes \usepackage{subfiles}
\begin{document}
%\maketitle (I just removed these because for the demonstartion i didnt actually need them)
%\tableofcontents
\subfile{../tex/subpiece1}
\end{document}

subpiece1 now reads

\documentclass[../master/main.tex]{subfiles}
% again I just removed the graphics path because I have no need for it
\begin{document}
\section{sectiontitle}
%Images and text
\end{document}

I personally prefer to group my preamble.sty into the same folder as my main.tex but the basic idea is the same. I believe any path would be fine as long as the relative paths are the same for both the 'main.tex' and 'subpiece1.tex' files.

I also suspect there are better/more elegant ways of getting around this problem but this worked for me so far.

Best Answer

Related Solutions

[Tex/LaTex] Subfiles in subdirectory, file not found

Related Question