![警告:字体形状‘OT1/cmss/m/sc’大小不可用](https://linux22.com/image/419643/%E8%AD%A6%E5%91%8A%EF%BC%9A%E5%AD%97%E4%BD%93%E5%BD%A2%E7%8A%B6%E2%80%98OT1%2Fcmss%2Fm%2Fsc%E2%80%99%E5%A4%A7%E5%B0%8F%E4%B8%8D%E5%8F%AF%E7%94%A8.png)
当我在演示文稿中添加另一张幻灯片时,我会收到有关此幻灯片的警告
\documentclass{beamer}
\usepackage{float}
\usepackage{amssymb,amsmath}
\usepackage{physics}
\usepackage{braket}
\usepackage{graphicx}
\usepackage{hyperref}
%\usepackage{french}
\usepackage[utf8]{inputenc}
\usepackage[french]{babel}
%\usepackage{msg-msg}
%\usepackage{lmodern}
%\usepackage{anyfontsize}
\usetheme{Antibes}
%\usetheme{Warsaw}
\usecolortheme{crane}
%\usetheme{Berkeley}
%\usepackage{textpos}
%\usecolortheme{wolverine}
%\usetheme{Boadilla}
\definecolor{asparagus}{rgb}{0.53, 0.66, 0.42}
\usecolortheme[named=asparagus]{structure}
\usepackage{xcolor}
\setbeamertemplate{footline}[frame number]
\setbeamertemplate{headline}{}
\title{\textbf {Theoretical Study of Electrical Conductivity in Graphene-Like Materials}}
\author{Latifah Salem Alrobiei \texorpdfstring{ \\ [1cm]{\small Supervised by \\ Dr.Narjes A. Ben Brabim \hspace{35pt} Dr. Abdullah A. Shaltout} \\ {\small Assistant Prof. of Solid state \qquad Associate Prof. of Atomic and} \\ {physics \hfill \hspace{35pt} \qquad Molecular Spectra}}{}}
\institute[Taif University] % (optional, but mostly needed)
{
\inst{1}%
Department of Physics \\
Taif University
}
\date{1442-2020}
\pgfdeclareimage[height=1.5cm]{university-logo}{TU}
\logo{\pgfuseimage{university-logo}}
\pgfdeclareimage[height=1.5cm]{university-logo}{TU}
\logo{\pgfuseimage{university-logo}}
\begin{document}
\begin{frame}[t]{Graphene}
\begin{columns}[onlytextwidth]
\begin{column}{0.5\textwidth}
\begin{center}
\begin{figure}
\includegraphics[scale=0.3]{graphenee.png}
\caption{Graphene crystal structure}
\end{figure}\pause
\end{center}
\end{column}
\begin{column}{0.5\textwidth}
\begin{itemize}
\item In $2004$ Geim and Novoselov work experimentally to isolate a single atomic layer of carbon (graphene)for the first time by using 'Scotch tape' to award with the Nobel Prize in Physics in $2010$.\pause
\item Graphene exhibit very interesting properties, such as \pause
\begin{normalsize}
\item Linear energy dispersion.\pause
\item Carriers with zero mass.\pause
\item High mobility rather than the best metal.
\end{normalsize}
\end{itemize}
\end{column}
\end{columns}
\end{frame}
\end {document}
警告说字体形状‘OT1/cmss/m/sc’大小<10>不可用
请问该如何避免这种情况?
日志文件如下
LaTeX Font Warning: Font shape `OT1/cmss/m/sc' in size <10> not available
(Font) Font shape `OT1/cmr/m/sc' tried instead on input line 87.
[4
<./graphenee.png>]
File: graphenee.png Graphic file (type png)
<use graphenee.png>
Package pdftex.def Info: graphenee.png used on input line 87.
(pdftex.def) Requested size: 101.78102pt x 83.11113pt.
[5
]
File: graphenee.png Graphic file (type png)
<use graphenee.png>
Package pdftex.def Info: graphenee.png used on input line 87.
(pdftex.def) Requested size: 101.78102pt x 83.11113pt.
[6
]
File: graphenee.png Graphic file (type png)
<use graphenee.png>
Package pdftex.def Info: graphenee.png used on input line 87.
(pdftex.def) Requested size: 101.78102pt x 83.11113pt.
[7
]
File: graphenee.png Graphic file (type png)
<use graphenee.png>
Package pdftex.def Info: graphenee.png used on input line 87.
(pdftex.def) Requested size: 101.78102pt x 83.11113pt.
[8
]
File: graphenee.png Graphic file (type png)
<use graphenee.png>
Package pdftex.def Info: graphenee.png used on input line 87.
(pdftex.def) Requested size: 101.78102pt x 83.11113pt.
[9
]
!pdfTeX error: pdflatex (file ./groupIV.png): libpng: internal error
==> Fatal error occurred, no output PDF file produced!
万分感谢