我无法使用此标头编织文件：
---
title: ' '
author: ' '
output: pdf_document
header-includes:
- \usepackage[T1]{fontenc}
- \usepackage[default]{raleway}
---
使用tinytex分发时出现错误。
! Package fontenc Error: Encoding file `ly1enc.def' not found.
(fontenc) You might have misspelt the name of the encoding.
xfun::session_info('rmarkdown')的输出：
R version 3.6.0 (2019-04-26)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 17134), RStudio 1.2.1335
Locale:
LC_COLLATE=Czech_Czechia.1250 LC_CTYPE=Czech_Czechia.1250 LC_MONETARY=Czech_Czechia.1250 LC_NUMERIC=C
LC_TIME=Czech_Czechia.1250
Package version:
base64enc_0.1.3 digest_0.6.19 evaluate_0.13 glue_1.3.1 graphics_3.6.0 grDevices_3.6.0 highr_0.8 htmltools_0.3.6
jsonlite_1.6 knitr_1.23 magrittr_1.5 markdown_0.9 methods_3.6.0 mime_0.6 Rcpp_1.0.1 rmarkdown_1.12
stats_3.6.0 stringi_1.4.3 stringr_1.4.0 tinytex_0.13 tools_3.6.0 utils_3.6.0 xfun_0.7 yaml_2.2.0
Pandoc version: 2.6
删除\usepackage[default]{raleway}时一切正常。任何建议都将受到欢迎。