最近我在编写一本中文书，发布在 bookdown.org。前些天都正常，昨天更新时出了点问题（pdf 和 epub 下载链接莫名其妙不见了），于是就把旧项目从 bookdown.org 删掉了，重新发布一遍，却总是失败。周末折腾进去了，仍然没解决，特来求助。

下面是我做的测试。事先声明一下，所有的测试在本地编译都是成功的，但是在 bookdown.org 发布却失败。

用 RStudio 新建 bookdown 项目，默认模板（英文）是可以正常在 bookdown.org 发布的。
用 @yihui 的 bookdown 中文模板，发布失败。log 文件完整版附后（log 1），里面主要的错误是 ctexbook.cls 未找到：

tlmgr search --file --global '/ctexbook.cls'
03/25 20:14:55.653
cannot setup TLPDB in /home/texmf at /usr/bin/tlmgr line 5604.
03/25 20:14:55.657
! LaTeX Error: File `ctexbook.cls' not found.

3. 我电脑本地有 ctexbook.cls，位于 C:\Users\dapeng\AppData\Roaming\TinyTeX\texmf-dist\tex\latex\ctex ，我就把这个文件拷贝到了上述模板书稿的项目根目录，重新发布，仍然失败，log 文件完整版附后（log 2），其中显示的主要错误是 expl3 太旧：

! ctex error: "l3-too-old"
03/25 20:28:07.674
!
03/25 20:28:07.674
! Support package `expl3' too old.

我自己的书稿也是同样的现象。所以，不是书稿本身的问题。

我的书稿最近更新比较频繁，上次往 bookdown.org 成功更新是什么时候我忘了，但距今肯定不超过一周。

不知哪位遇到类似问题没有？ @yihui 可不可以帮忙看看？先行谢过了！

log 1

03/25 20:14:52.233
Using Packrat dir /opt/rstudio-connect/mnt/report/packrat/lib/x86_64-pc-linux-gnu/3.4.0
03/25 20:14:52.236
LANG: en_US.UTF-8
03/25 20:14:52.236
R version: 3.4.0
03/25 20:14:52.236
rmarkdown version: 1.9
03/25 20:14:52.236
knitr version: 1.20
03/25 20:14:52.589
03/25 20:14:52.589
03/25 20:14:52.589
processing file: bookdown.Rmd
03/25 20:14:52.698
| | | 0% | |..... | 8%
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inline R code fragments
03/25 20:14:52.698
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| |.......... | 15%
03/25 20:14:52.701
label: setup (with options)
03/25 20:14:52.703
List of 1
03/25 20:14:52.705
$ include: logi FALSE
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ordinary text without R code
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label: unnamed-chunk-1
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ordinary text without R code
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label: unnamed-chunk-2 (with options)
03/25 20:14:53.185
List of 3
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$ type : chr "flushright"
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$ html.tag: chr "p"
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$ engine : chr "block2"
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ordinary text without R code
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label: hello (with options)
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List of 2
03/25 20:14:53.190
$ fig.cap : chr "雷猴啊，散点图！"
03/25 20:14:53.190
$ out.width: chr "90%"
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| |............................................. | 69%
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ordinary text without R code
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label: iris
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inline R code fragments
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| |............................................................ | 92%
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label: unnamed-chunk-3 (with options)
03/25 20:14:53.601
List of 1
03/25 20:14:53.601
$ include: logi FALSE
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| |.................................................................| 100%
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ordinary text without R code
03/25 20:14:53.669
03/25 20:14:53.669
03/25 20:14:53.670
output file: bookdown.knit.md
03/25 20:14:53.670
03/25 20:14:53.723
/opt/rstudio-connect/ext/pandoc/pandoc +RTS -K512m -RTS bookdown.utf8.md --to html4 --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output bookdown.html --smart --email-obfuscation none --standalone --section-divs --table-of-contents --toc-depth 3 --template /opt/rstudio-connect/mnt/packrat/3.4.0/v2/library/bookdown/e5916615038d3cedf27b78814803877c/bookdown/templates/gitbook.html --highlight-style pygments --number-sections --css css/style.css --include-in-header /opt/rstudio-connect/mnt/tmp/RtmpASkpfX/rmarkdown-str35525930532.html --mathjax --filter /opt/rstudio-connect/ext/pandoc/pandoc-citeproc
03/25 20:14:54.080
03/25 20:14:54.080
Output created: _book/index.html
03/25 20:14:54.536
03/25 20:14:54.536
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processing file: bookdown.Rmd
03/25 20:14:54.598
| | | 0% | |..... | 8%
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inline R code fragments
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label: setup (with options)
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List of 1
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$ include: logi FALSE
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| |............... | 23%
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ordinary text without R code
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label: unnamed-chunk-1
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ordinary text without R code
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label: unnamed-chunk-2 (with options)
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List of 3
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$ type : chr "flushright"
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$ html.tag: chr "p"
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$ engine : chr "block2"
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ordinary text without R code
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label: hello (with options)
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List of 2
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$ fig.cap : chr "雷猴啊，散点图！"
03/25 20:14:54.649
$ out.width: chr "90%"
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ordinary text without R code
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inline R code fragments
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label: unnamed-chunk-3 (with options)
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List of 1
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$ include: logi FALSE
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| |.................................................................| 100%
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ordinary text without R code
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03/25 20:14:55.087
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output file: bookdown.knit.md
03/25 20:14:55.104
03/25 20:14:55.135
/opt/rstudio-connect/ext/pandoc/pandoc +RTS -K512m -RTS bookdown.utf8.md --to latex --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output bookdown.tex --table-of-contents --toc-depth 3 --template latex/template.tex --number-sections --highlight-style tango --latex-engine xelatex --natbib --include-in-header latex/preamble.tex --include-before-body latex/before_body.tex --include-after-body latex/after_body.tex --top-level-division=chapter --variable tables=yes --standalone
03/25 20:14:55.406
tlmgr search --file --global '/ctexbook.cls'
03/25 20:14:55.653
cannot setup TLPDB in /home/texmf at /usr/bin/tlmgr line 5604.
03/25 20:14:55.657
! LaTeX Error: File `ctexbook.cls' not found.
03/25 20:14:55.657
03/25 20:14:55.657
! Emergency stop.
03/25 20:14:55.657
<read *>
03/25 20:14:55.657
03/25 20:14:55.657
Error: Failed to compile bookdown.tex. See bookdown.log for more info.
03/25 20:14:55.657
In addition: Warning messages:
03/25 20:14:55.657
1: running command ''tlmgr' search --file --global '/ctexbook.cls'' had status 2
03/25 20:14:55.657
2: In parse_packages(logfile, quiet = c(TRUE, FALSE, FALSE)) :
03/25 20:14:55.657
Failed to find a package that contains ctexbook.cls
03/25 20:14:55.658
Please delete bookdown.Rmd after you finish debugging the error.
03/25 20:14:55.658
Execution halted

log 2

03/25 20:28:04.301
Using Packrat dir /opt/rstudio-connect/mnt/report/packrat/lib/x86_64-pc-linux-gnu/3.4.0
03/25 20:28:04.305
LANG: en_US.UTF-8
03/25 20:28:04.305
R version: 3.4.0
03/25 20:28:04.305
rmarkdown version: 1.9
03/25 20:28:04.305
knitr version: 1.20
03/25 20:28:04.652
03/25 20:28:04.652
03/25 20:28:04.652
processing file: bookdown.Rmd
03/25 20:28:04.758
| | | 0% | |..... | 8%
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inline R code fragments
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| |.......... | 15%
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label: setup (with options)
03/25 20:28:04.763
List of 1
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$ include: logi FALSE
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| |............... | 23%
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ordinary text without R code
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ordinary text without R code
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label: unnamed-chunk-2 (with options)
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List of 3
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$ type : chr "flushright"
03/25 20:28:05.229
$ html.tag: chr "p"
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$ engine : chr "block2"
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| |................................... | 54%
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ordinary text without R code
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label: hello (with options)
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List of 2
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$ fig.cap : chr "雷猴啊，散点图！"
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$ out.width: chr "90%"
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ordinary text without R code
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inline R code fragments
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label: unnamed-chunk-3 (with options)
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List of 1
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$ include: logi FALSE
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ordinary text without R code
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output file: bookdown.knit.md
03/25 20:28:05.713
03/25 20:28:05.765
/opt/rstudio-connect/ext/pandoc/pandoc +RTS -K512m -RTS bookdown.utf8.md --to html4 --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output bookdown.html --smart --email-obfuscation none --standalone --section-divs --table-of-contents --toc-depth 3 --template /opt/rstudio-connect/mnt/packrat/3.4.0/v2/library/bookdown/e5916615038d3cedf27b78814803877c/bookdown/templates/gitbook.html --highlight-style pygments --number-sections --css css/style.css --include-in-header /opt/rstudio-connect/mnt/tmp/RtmpdbiBj6/rmarkdown-str37605ede22df.html --mathjax --filter /opt/rstudio-connect/ext/pandoc/pandoc-citeproc
03/25 20:28:06.121
03/25 20:28:06.121
Output created: _book/index.html
03/25 20:28:06.580
03/25 20:28:06.580
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processing file: bookdown.Rmd
03/25 20:28:06.644
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List of 1
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label: unnamed-chunk-2 (with options)
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List of 3
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$ type : chr "flushright"
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$ html.tag: chr "p"
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label: hello (with options)
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List of 2
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$ fig.cap : chr "雷猴啊，散点图！"
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List of 1
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$ include: logi FALSE
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ordinary text without R code
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output file: bookdown.knit.md
03/25 20:28:07.153
03/25 20:28:07.182
/opt/rstudio-connect/ext/pandoc/pandoc +RTS -K512m -RTS bookdown.utf8.md --to latex --from markdown+autolink_bare_uris+ascii_identifiers+tex_math_single_backslash --output bookdown.tex --table-of-contents --toc-depth 3 --template latex/template.tex --number-sections --highlight-style tango --latex-engine xelatex --natbib --include-in-header latex/preamble.tex --include-before-body latex/before_body.tex --include-after-body latex/after_body.tex --top-level-division=chapter --variable tables=yes --standalone
03/25 20:28:07.674
! ctex error: "l3-too-old"
03/25 20:28:07.674
!
03/25 20:28:07.674
! Support package `expl3' too old.
03/25 20:28:07.674
!
03/25 20:28:07.674
! See the ctex documentation for further information.
03/25 20:28:07.674
!
03/25 20:28:07.674
! For immediate help type H <return>.
03/25 20:28:07.674
!...............................................
03/25 20:28:07.674
03/25 20:28:07.674
!
03/25 20:28:07.674
! Support package `expl3' too old.
03/25 20:28:07.674
!
03/25 20:28:07.674
! See the ctex documentation for further information.
03/25 20:28:07.674
!
03/25 20:28:07.674
! For immediate help type H <return>.
03/25 20:28:07.674
!...............................................
03/25 20:28:07.674
03/25 20:28:07.674
! Support package `expl3' too old.
03/25 20:28:07.674
!
03/25 20:28:07.674
! See the ctex documentation for further information.
03/25 20:28:07.674
!
03/25 20:28:07.674
! For immediate help type H <return>.
03/25 20:28:07.674
!...............................................
03/25 20:28:07.674
03/25 20:28:07.674
!
03/25 20:28:07.674
! See the ctex documentation for further information.
03/25 20:28:07.674
!
03/25 20:28:07.674
! For immediate help type H <return>.
03/25 20:28:07.674
!...............................................
03/25 20:28:07.674
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! See the ctex documentation for further information.
03/25 20:28:07.674
!
03/25 20:28:07.674
! For immediate help type H <return>.
03/25 20:28:07.674
!...............................................
03/25 20:28:07.674
03/25 20:28:07.674
!
03/25 20:28:07.674
! For immediate help type H <return>.
03/25 20:28:07.674
!...............................................
03/25 20:28:07.674
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! For immediate help type H <return>.
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!...............................................
03/25 20:28:07.674
03/25 20:28:07.674
Error: Failed to compile bookdown.tex. See bookdown.log for more info.
03/25 20:28:07.676
Please delete bookdown.Rmd after you finish debugging the error.
03/25 20:28:07.676
Execution halted