![系统返回代码 256](https://linux22.com/image/393554/%E7%B3%BB%E7%BB%9F%E8%BF%94%E5%9B%9E%E4%BB%A3%E7%A0%81%20256%20.png)
从今天早上开始,我甚至无法编译最简单的代码。我不知道为什么会产生这些错误
\documentclass[preview, border=1pt, convert={outext=.png}]{standalone}
\usepackage{amsfonts}
\usepackage{mathtools}
\usepackage{amsmath,esint}
\usepackage{amssymb}
\usepackage{siunitx}
\usepackage{braket}
\usepackage[utf8]{inputenc}
\begin{document}
\begin{equation*}
W_{12} = \int_1^2
\end{equation*}
\end{document}
我得到:
[1{/usr/share/texlive/texmf-dist/fonts/map/pdftex/updmap/pdftex.map}]
(./formula.aux) )</usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/
cmmi10.pfb></usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.
pfb></usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr7.pfb>
!pdfTeX error: pdflatex (file esint10.pfb): cannot open Type 1 font file for reading
==> Fatal error occurred, no output PDF file produced!
system returned with code 256
convert: unable to open image `formula.pdf': No such file or directory @ error/blob.c/OpenBlob/2761.
convert: no images defined `formula.png' @ error/convert.c/ConvertImageCommand/3258.
system returned with code 256
Class standalone Warning: Conversion unsuccessful!
(standalone) There might be something wrong with your
(standalone) conversation software or the file permissions!