删除警告“Tab 已转换为空格。”

Question

我收到此警告“Tab 已转换为空白区域。”我该如何删除它，为什么会收到它？

\documentclass[12pt]{article}

\usepackage[utf8]{inputenc}                     % Gjør det mulig å bruke norske bokstaver
    \usepackage[T1]{fontenc} % fontenc 
    \usepackage{graphicx}                           % Grafisk pakke
    \usepackage[left=3cm, right=2.5cm, top=3cm, bottom=3cm]{geometry}               % For å sette marginer
    \usepackage{float}                              % Plassering av tab/fig
    \usepackage{url}                                % Håntering av URL:er
    \usepackage[parfill]{parskip}                   % Removes indent (works the same as \noindent )
    \usepackage[compact]{titlesec}                  % Brukes til a forandre mellomrom rundt overskrifter
    \usepackage[style=apa, backend=biber]{biblatex} % Bibliography
    \usepackage{textcomp}                           % Brukes for å fjerne advarsler fra gensymb
    \usepackage{gensymb}                            % Adds symbols, as degree sign, etc.
    \usepackage[numbib]{tocbibind}                  % Setter inn innholdsfortengelse i innholdsfortengelse + nr. på referanser
    \usepackage{afterpage}                          % For nye komandoer
    \usepackage[table,xcdraw]{xcolor}               % For tabeller
    \usepackage{setspace}
    \usepackage[norsk]{babel}                       % Brukes i oversetning
    \usepackage{booktabs}                           % Brukes på tabeller
    \usepackage[yyyymmdd]{datetime}                 % Viser dato \today i ISO format
    %\usepackage{pdflscape}                          % For landscape modus for enkelt sider, spesefik for compiler
    \usepackage{adjustbox}                          % For tables
    \usepackage{csquotes}                           % ??? noe med \cite
    \usepackage{amsmath}                            % TIl \text for matte
    \usepackage{subcaption}                         % to bilder vedsiden av hverandre
    \usepackage{pgfplots}                           % Grafer
        \pgfplotsset{width=7cm,compat=1.15}
    \usepackage{filecontents}                       % Filer inni filer
    \usepackage{enumitem}                           % Numerering med bokstaver osv
    \usepackage{silence}                            % Mute warnings
    \usepackage{fancyvrb}
    \usepackage[hidelinks]{hyperref}                % Ha etter alle andre pakker

\begin{document}

    \begin{filecontents}{poissons.txt}
    57.53   -0.8191
    60.49   -0.7514
    63.64   -0.6641
    66.96   -0.5524
    70.46   -0.4229
    74.12   -0.2858
    \end{filecontents}

    \begin{filecontents}{stress.txt}
    57.53   1294.740473
    60.49   1331.223722
    63.64   1369.365567
    66.96   1221.925859
    70.46   1303.400342
    74.12   1386.914646
    \end{filecontents}

    \begin{figure}[H]
        \centering
        \begin{subfigure}{.475\linewidth}
            \centering
            \begin{tikzpicture}
                \begin{axis}[
                width=0.88\linewidth,
                height=6cm,
                xlabel={$\theta$},
                ylabel={$\nu$},
                ytick distance=0.1,
                xtick distance=5,
                ]
                \addplot+[smooth, mark=*] table{poissons.txt};
                \end{axis}
                \end{tikzpicture}
            \caption{Poissons ratio mot vinkel}
        \end{subfigure}%
        \hfill%
        \begin{subfigure}{.475\linewidth}
            \centering
            \begin{tikzpicture}
                \begin{axis}[
                    width=0.88\linewidth,
                    height=6cm,
                    xlabel={$\theta$},
                    ylabel={$\sigma$},
                    ytick distance=50,
                    xtick distance=5,
                ]
                \addplot+[smooth, mark=*] table{stress.txt};
                \end{axis}
            \end{tikzpicture}
            \caption{Stress ratio mot vinkel}
        \end{subfigure}
        \caption{a viser bla.}
        \label{fig:M1grafeVinkel}
    \end{figure}

\end{document}

Answer 1

正如@DavidCarlisle 所说，这很简单，我在一些地方使用了制表符，但出于某种原因，这造成了问题。表格是从 Excel 复制而来的，当我删除制表符并将其替换为空格时，警告就消失了。但出于某种原因，其他地方的制表符都正常工作，因此从 Excel 复制的表格中一定有一些奇怪的东西。