I have a big problem with my LaTeX project. I haven't modified it for 15 hours (worked before !), just copied it to get the same template in another project, and now the original document stopped working:
Here is the code of "packages.tex" below - I would be glad if you could help me since this is a very important project:
\documentclass[a4paper, 11pt, oneside]{article}
\usepackage{helvet}
\renewcommand{\familydefault}{\sfdefault}
\usepackage[french]{babel}
\selectlanguage{french}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{amsmath, amssymb, mathrsfs}
\usepackage[LGRgreek]{mathastext}
\usepackage{fixmath}
\usepackage{siunitx}
\usepackage{textcomp}
\usepackage{graphicx}
\usepackage{palatino}
\usepackage{caption}
\usepackage{float}
\usepackage[version=4]{mhchem}
\usepackage{titlesec}
\usepackage{verbatim}
\usepackage{mdframed}
\usepackage{subfig}
\usepackage{appendix}
\usepackage{longtable}
\usepackage{adjustbox}
\usepackage{multirow}
\usepackage{makeidx}
\usepackage{eurosym}
\usepackage{listings}
\usepackage{booktabs}
\usepackage{hyperref}
\usepackage{gensymb}
\usepackage[nottoc,notlot,notlof]{tocbibind}
\usepackage[normalem]{ulem}
\useunder{\uline}{\ul}{}
\newcommand{\tabitem}{~~\lap{\textbullet}~~}
\usepackage{longtable}
\usepackage{array}
\usepackage{enumitem}
\usepackage[backend=biber]{biblatex}
\addbibresource{biblio.bib}
\usepackage[left = 2 cm, right = 2.5cm, top = 2.5cm, bottom = 2.5cm]{geometry}
\usepackage{wrapfig}
\usepackage{setspace}
%\singlespacing
\newcolumntype{P}[1]{>{\centering\arraybackslash}p{#1}}
\newcolumntype{M}[1]{>{\centering\arraybackslash}m{#1}}
\titleformat{\section}
{\normalfont\large\bfseries\scshape}{\thesection}{1em}{}[{\titlerule[0.8pt]}]
\titleformat{\subsection}
{\normalfont\bfseries}{\thesubsection}{1em}{}[{\titlerule[0.4pt]}]
\titleformat{\subsubsection}
{\normalfont\itshape}{\thesubsection}{1em}{}[{\titlerule[0.2pt]}]
\usepackage{multicol}
\newenvironment{Figure}
{\par\medskip\noindent\minipage{\linewidth}}
{\endminipage\par\medskip}
EDIT: This also just happened in the copyed document, even if worked 5 minutes ago...
SECOND EDIT: here is the code of "main.tex":
\include{Template/packages}
\begin{document}
\include{Template/titlepage} %%% just the code of the title page
%%% Text using Figure and multicols
\include{Template/doc end} %%% For the bibliography "biblio.bib"
\end{document}
document
environment (hence my request for a complete file).document
environment, so the problem must be elsewhere.\include
in the preamble so the input is incorrect even if sometimes you avoid an error. Use\input
(I would also put the\documenclass
command in your main document not in the input one but latex doesn't care which way you do that.