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I am using a template with this preamble:

\documentclass{ieeeaccess}
\usepackage{cite}
\usepackage{amsmath,amssymb,amsfonts}
\usepackage{algorithmic}
\usepackage{graphicx}
\usepackage{textcomp}

I also need to add these packages:

\usepackage{tikz}
\usetikzlibrary{quantikz}

However there is a fatal conflict in compilation (I think between tikz and graphicx. How could I solve it?

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    millions of documents every day load tikz and graphicx. If you get an error show a small example, and show the exact error that you get, copied as text from the log file.
    – David Carlisle
    Commented Jun 19, 2021 at 9:59
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    also please give a link to ieeeaccess.cls which is not in the standard tex distributions
    – David Carlisle
    Commented Jun 19, 2021 at 10:00
  • tex.stackexchange.com/questions/440422/…
    – David Carlisle
    Commented Jun 19, 2021 at 10:33

1 Answer 1

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I found a copy of the class at

https://raw.githubusercontent.com/beatrizgoa/latex/master/ieeeaccess.cls

I will assume the version you are using is similar.

The class breaks LaTeX in several ways but in particular here it redefines the \year TeX primitive which breaks any date calculations in TeX (and so in pgfmath)

The class has

\def\year#1{\gdef\theyear{#1}}

which is to say the least not a good idea.

You should report this to the class maintainers but

\let\realyear\year
\documentclass{ieeeaccess}
\let\classyear\year
\let\year\realyear

\usepackage{tikz}
\usetikzlibrary{quantikz}

\begin{document}

\end{document}

Probably patches it enough so that LaTeX isn't completely broken.

If you are reporting it

\def\textit#1{{\it #1}}%
\def\textbf#1{{\bf #1}}%

Should be removed as well.

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