Quarto+R生成PDF时子表格编译报错：Extra }, or forgotten \endgroup

问题概述 #

• 使用Quarto结合R撰写学位论文，渲染为PDF时出现编译错误：ERROR: compilation failed- error Extra }, or forgotten \endgroup. l.3650 }
• 渲染HTML和Word格式均正常，仅PDF格式触发报错
• 已定位问题到生成子表格的R代码块，若改为生成单个表格则可正常渲染
• 错误提示的行号l.3650远大于当前章节的实际行数（约775行），无法直接定位问题位置

出错的子表格代码块 #

{r, display_aov_tbls}
#| label: tbl-aov_tbls_avg_vals
#| tbl-cap: ANOVA table of fixed effects for linear mixed effects models. Controlling factors of age, sex, and upper VO~2~ bound are excluded for brevity. * p < 0.05, ** p < 0.01, *** p < 0.001, ns (not significant).
#| tbl-subcap: 
#| - "VT~1~"
#| - "RC"
#| layout_nrow: 2

kable(aov_tbl_vt1) %>% 
    kable_classic(full_width = FALSE, html_font = "Times New Roman")

kable(aov_tbl_vt2) %>% 
    kable_classic(full_width = FALSE, html_font = "Times New Roman")

可正常渲染的单表格代码块 #

{r, display_aov_tbls}
#| label: tbl-aov_tbls_avg_vals
#| tbl-cap: ANOVA table of fixed effects for linear mixed effects models. Controlling factors of age, sex, and upper VO~2~ bound are excluded for brevity. * p < 0.05, ** p < 0.01, *** p < 0.001, ns (not significant).

kable(aov_tbl_vt1) %>% 
    kable_classic(full_width = FALSE, html_font = "Times New Roman")

疑问 #

• 此问题属于软件bug，还是可通过调整LaTeX、Quarto、R或Pandoc的深层配置解决？
• 目前使用了自定义.tex文件和_quarto.yml配置以满足学校格式要求，可提供相关配置信息协助排查

内容的提问来源于stack exchange，提问作者a.hesse