解决“500: Internal Server Error, nbconvert failed:

Question

每当我尝试将 Jupyter 笔记本导出为 PDF 时，我都会在单独的窗口中收到以下错误：500 : Internal Server ErrorThe error was:nbconvert failed: xelatex not found on PATH, if you have not installed xelatex you may need to do so. Find further instructions at https://nbconvert.readthedocs.io/en/latest/install.html#installing-tex.我正在运行 macOS Sierra 10.12.6。我尝试过的事情：通过 pip（在 Jupyter notebook 中）和 conda（终端）重新安装 nbconvert为 Mac 安装 xelatex重新安装 Mactex安装 pandoc（通过 pip 和“conda install -c conda-forge pandoc”）跑步!echo $PATH产量：/Users/ed/anaconda/bin:/Users/ed/anaconda/bin:/usr/bin:/bin:/usr/sbin:/sbin我根据@einsweniger 的建议在此处找到了包含 xelatex 的目录：/usr/local/texlive/bin/x86_64-darwin。我把XeLatex复制粘贴到上面的bin目录下，出现新错误：```nbconvert failed: PDF creating failed, captured latex output:warning: kpathsea: configuration file texmf.cnf not found in these directories: /Users/e/anaconda/bin:/Users/ed/anaconda/bin/share/texmf-local/web2c:/Users/ed/anaconda/bin/share/texmf-dist/web2c:/Users/ed/anaconda/bin/share/texmf/web2c:/Users/ed/anaconda/bin/texmf-local/web2c:/Users/ed/anaconda/bin/texmf-dist/web2c:/Users/ed/anaconda/bin/texmf/web2c:/Users/ed/anaconda:/Users/edefilippis/anaconda/share/texmf-local/web2c:/Users/e/anaconda/share/texmf-dist/web2c:/Users/ed/anaconda/share/texmf/web2c:/Users/ed/anaconda/texmf-This is XeTeX, Version 3.14159265-2.6-0.99999 (TeX Live 2018) (preloaded format=xelatex)kpathsea: Running mktexfmt xelatex.fmtI can't find the format file `xelatex.fmt'!```我还将 xelatex.fmt 放在目录中，但仍然出现错误。

Answer 1

我不习惯 Mac 安装路径，根据basictex faq所说，我认为可执行文件应该存在于在终端中/usr/local/texlive/bin/x86_64-darwin 运行which xelatex也可能有助于查找命令所在的位置，但这仅在目录已在您的 PATH 变量中时才有效.

find / -name 'xelatex'如果它不在您的 PATH 中，则会运行另一种方法，因此您可能会以这种方式找到它（可能需要一段时间，因为这会搜索整个硬盘驱动器）。

找到它并将路径添加到 PATH 变量后，您还应该通过运行检查 jupyter 是否具有正确的 PATH

import os

print(os.environ['PATH'])

笔记本内。