-> 更新

Question

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-> 更新 <-

经过半天的反复试验，可以肯定地说，这是由于

“著名”的错误Error: Float(s) lost。

我一直在这个网站上阅读，但似乎仅有的方法是把它从mini-figure东西里拿出来。目前没有其他有用的办法。

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代码：

\documentclass[12pt,a4paper]{report}

\usepackage{amsmath,amsthm,enumerate}
\usepackage{graphicx,subfigure}% for pictures
\graphicspath{{Pictures/}} % Specifies the directory where pictures are stored


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Example and Solution

\usepackage[most]{tcolorbox}

\NewTColorBox[auto counter, number within=section]{example}{+O{}}{%
        enhanced, 
        breakable,
        coltitle=black, 
        fonttitle=\bfseries,
        title={Example~\thetcbcounter:},
        attach title to upper=\quad,
        before lower={\textbf{Solution~\thetcbcounter:\quad}},
        %lowerbox=invisible,
        bicolor,
        colback=black!5!white,
        colbacklower=black!3!white,
        #1}
%\tcbset{student/.style={lowerbox=invisible}}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%\pdfoptionpdfminorversion 6

\begin{document}


\begin{example}

Figure~\ref{fig:conti_pdf_cdf} gives the probability density function $f(x)$ and its cumulative function $F(x)$.
\begin{figure}[!hp]
    \centering
    \subfigure[$f(x)$]{\includegraphics[scale=0.6]{15-1.pdf}}  %1.5 version
    \\[2ex]
    \subfigure[$F(x)$]{\includegraphics[scale=0.6]{15-2.pdf}}
    \caption{Illustration of $f(x)$ and $F(x)$ for a (continuous) piecewise function}
    \label{fig:conti_pdf_cdf}
\end{figure}


\tcblower

Figure~\ref{fig:conti_pdf_cdf} gives the probability density function $f(x)$ and its cumulative function $F(x)$.
\begin{figure}[!hp]
    \centering
    \subfigure[$f(x)$]{\includegraphics[scale=0.6]{14-1.pdf}} %1.4 version
    \\[2ex]
    \subfigure[$F(x)$]{\includegraphics[scale=0.6]{14-2.pdf}}
    \caption{Illustration of $f(x)$ and $F(x)$ for a (continuous) piecewise function}
    \label{fig:conti_pdf_cdf}
\end{figure}



\begin{center}
    \includegraphics[scale=0.4]{chap3_eg1.pdf} % 1.4 version
\end{center}

\end{example}



\end{document}

如果我在不使用环境的情况下编译它example，它可以正常工作。

如果我随后添加example环境，它不会编译（1.4 或 1.5 版 PDF 没有图表）。忽略警告，{chap3_eg1.pdf}最终 PDF 中只会显示。

是否有任何特定的东西（在 PDF 中）导致 latex 无法编译 PDF？1.4 和 1.5 版本都是文件same。我使用 Acrobat 在版本之间进行转换。

那么有什么解决办法吗？

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旧帖

抱歉，标题太乱了。我会尽量写得简单一点。

首先，我试图实现此解决方案（见评论）。所以我用

\NewTColorBox[auto counter]{exercise}{+O{}}{%
    enhanced, breakable,
    coltitle=black, 
    fonttitle=\bfseries,
    title={Exercise~\thetcbcounter:},
    attach title to upper=\quad,
    before lower={\textbf{Solution~\thetcbcounter:\quad}},
    #1}

我收到一个错误。

! pdfTeX error (setup): \pdfminorversion cannot be changed after data is written to the PDF file.

没有生成 PDF 文件。我生成后一切正常

% \pdfoptionpdfminorversion 6

使用不同的.tex文件时，我收到此错误，但我找到了丢失的 PDF（版本 1.5）

! LaTeX Error: Float(s) lost.

它们被编码使用

\begin{figure}[!hp]
    \centering
    \subfigure[$f(x)$]{\includegraphics[scale=0.6]{chap3_eg3_den.pdf}}
    \\[2ex]
    \subfigure[$F(x)$]{\includegraphics[scale=0.6]{chap3_eg3_cum.pdf}}
    \caption{Illustration of $f(x)$ and $F(x)$ for a (continuous) piecewise function}
    \label{fig:conti_pdf_cdf}
\end{figure}

做了一些研究，说与数字中的数字有关\marginpar。但是看我的代码，我不认为这是这种情况。

我有其他 PDF（也是 1.5），运行良好。

我想我真正的问题是——是什么原因造成的？

那packages？那Floats（子图）？或者那PDFVersion东西？？

Answer 1

定义一个非浮动版本并不困难figure。

在代码中我将其改为subfigure（已弃用约 15 年）subfig并因此\subfigure改为\subfloat。

\documentclass[12pt,a4paper]{report}

\usepackage{amsmath,amsthm,enumerate}
\usepackage{graphicx,subfig}% for pictures

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Example and Solution

\usepackage[most]{tcolorbox}

\NewTColorBox[auto counter, number within=section]{example}{+O{}}{%
        enhanced, 
        breakable,
        coltitle=black, 
        fonttitle=\bfseries,
        title={Example~\thetcbcounter:},
        attach title to upper=\quad,
        before lower={\textbf{Solution~\thetcbcounter:\quad}},
        %lowerbox=invisible,
        bicolor,
        colback=black!5!white,
        colbacklower=black!3!white,
        #1}
%\tcbset{student/.style={lowerbox=invisible}}

\makeatletter
\newenvironment{fixedfigure}
 {\def\@captype{figure}\center}
 {\endcenter}
\makeatother

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%\pdfoptionpdfminorversion 6

\begin{document}

\begin{example}

Figure~\ref{fig:conti_pdf_cdf} gives the probability density function $f(x)$ and its cumulative function $F(x)$.
\begin{fixedfigure}
    \subfloat[$f(x)$]{\includegraphics[width=3cm]{example-image}}\qquad
    \subfloat[$F(x)$]{\includegraphics[width=3cm]{example-image}}
    \caption{Illustration of $f(x)$ and $F(x)$ for a (continuous) piecewise function}
    \label{fig:conti_pdf_cdf}
\end{fixedfigure}


\tcblower

Figure~\ref{fig:conti_pdf_cdf-B} gives the probability density function $f(x)$ and its cumulative function $F(x)$.
\begin{fixedfigure}
    \subfloat[$f(x)$]{\includegraphics[width=3cm]{example-image}}\qquad
    \subfloat[$F(x)$]{\includegraphics[width=3cm]{example-image}}
    \caption{Illustration of $f(x)$ and $F(x)$ for a (continuous) piecewise function}
    \label{fig:conti_pdf_cdf-B}
\end{fixedfigure}



\begin{center}
    \includegraphics[width=5cm]{example-image} % 1.4 version
\end{center}

\end{example}

\end{document}

Answer 2

就我而言，我有很多章节，有些章节包含数十个图。当我迁移到不同的 latex 模板（从 memoir 到 kaobook）时出现了此错误，但迁移不一定是导致问题的原因，问题恰好隐藏在 memoir 模板中。以下是经过清理的代码摘录：

\begin{figure*}
\includegraphics[width=\linewidth]{example-image}
\caption[Three layers of an app]{Three layers of an app \sidenote{Image credit: First published somewhere else~\cite{harty_aymer_playbook_2016}}.}
\label{fig:3-layers}
\end{figure*}

kaobook\sidenote{...}或\footnote{...}memoir 导致本章后面出现 Float(s) lost 消息。其中一张图片确实没有显示在生成的 PDF 中。

我使用\clearpage每个命令\section{...}来帮助我追踪问题发生的位置。这让我得到了这个图。

解决方法是删除 sidenote/footnote 命令，如下所示：

\begin{figure*}
\includegraphics[width=\linewidth]{example-image}
\caption[Three layers of an app]{Three layers of an app {Image credit: First published somewhere else~\cite{harty_aymer_playbook_2016}}.}
\label{fig:3-layers}
\end{figure*}

注意：我暂时在{}文本周围留下了，因为这样可以快速轻松地测试我的理论。一旦我看到错误已经得到解决，它们就会被删除。我希望这可以帮助其他人。