在我将 R 更新到 3.5.0 版本后，我无法从 Rstudio 启动我的 MikTex，
---
output:
pdf_document:
latex_engine: xelatex
includes:
in_header: header.tex
keep_tex: yes
---
以上是我在 Rmd 之前输入的代码，在编织之后，
Sorry, but D:\miktex\miktex\bin\x64\xelatex.exe did not succeed.
The log file hopefully contains the information to get MiKTeX going again:
C:/Users/DELL/AppData/Local/MiKTeX/2.9/miktex/log/xelatex.log
xelatex.log 中显示的信息：
2018-04-29 10:06:17,482+0800 FATAL xelatex - Info:
2018-04-29 10:06:17,482+0800 FATAL xelatex - Source: Libraries\MiKTeX\UI\Qt\mikuiqt.cpp
2018-04-29 10:06:17,482+0800 FATAL xelatex - Line: 45
2018-04-29 10:06:17,482+0800 INFO xelatex - finishing with exit code 1
2018-04-29 10:06:17,626+0800 INFO xelatex - starting with …