缺失数字，视为零（我认为是 \hspace）

Question

首先我要说的是，我甚至不是 LaTeX 初学者——我几乎一无所知。我有一个名为 title.tex 的 .tex 文件，它是在 Windows 平台上开发的，并在 R markdown 文档中使用，如下所示：

output:
  pdf_document:
    latex_engine: xelatex
    includes:
      in_header: "preamble.tex"
      before_body: "title.tex"

对于在 Windows 笔记本电脑上创建它的人来说，这很有用，但在我的 Ubuntu 系统上却不行。我得到的输出/错误是：

output file: template_vF.knit.md

/usr/lib/rstudio-server/bin/pandoc/pandoc +RTS -K512m -RTS template_vF.knit.md --to latex --from markdown+autolink_bare_uris+tex_math_single_backslash --output template_vF.tex --lua-filter /usr/local/lib/R/site-library/rmarkdown/rmarkdown/lua/pagebreak.lua --lua-filter /usr/local/lib/R/site-library/rmarkdown/rmarkdown/lua/latex-div.lua --self-contained --highlight-style tango --pdf-engine xelatex --include-in-header preamble.tex --include-before-body title.tex --variable graphics 
! Missing number, treated as zero.
<to be read again> 
                   \vrule 
l.138 ...\hspace{25pt}\color{gray}\line(1,0){30pt}
                                                   \par 

Error: LaTeX failed to compile template_vF.tex. See https://yihui.org/tinytex/r/#debugging for debugging tips. See template_vF.log for more info.

我注释掉输出中指定的那行，结果又出现了错误。这似乎是语法问题，\hspace但从我尽我所能检查来看，我似乎正确地使用了该方法。下面的 title.tex 中有什么明显的错误吗？寻求帮助/提示。

title.tex 如下：

\begin{titlepage}
%Change margins for title page
    \newgeometry{top=.5cm,bottom=0cm, left=0cm, right = 0cm}

%Import header and footer/but remove footer
    \thispagestyle{fancy}
    \fancyfoot{}

%Set up left side of page
   \begin{minipage}{0.4\textwidth}
%Change to sans serif LaTeX font
    \sffamily
%Vertical space between top of page and logo
   \vspace*{50pt}
%Indent and insert logo
   \hspace{25pt}\includegraphics{logo.png} \par
%Vertical space between logo and Title
   \vspace*{150pt}
%Indent and title text
    \hspace{25pt}\Huge \textbf{A Huge Title} \par
    \vspace*{25pt}
\hspace{25pt} \color{bluefont}\LARGE A large subtitle... \par
\vspace*{1pt}
\hspace{25pt} ...continuing below \par
    \vspace*{15pt} 
%Divider line
    \hspace{25pt}\color{gray}\line(1,0){30pt} \par
%Indent and date
    \hspace{25pt}\color{black}\textbf{April 21, 2021}

    \end{minipage}%
\hfill
%Set up right half of page
    \begin{minipage}[t]{0.6\textwidth}
%Move image anchor to top of header
    \vspace*{-200pt}
%Insert cover photo
    \includegraphics[width = \textwidth]{cover.jpg}
    \vspace{-5pt}
%Change to sans serif LaTeX font
    \sffamily
%Create black box below image
%Current height is set to 220pt; increase if new photo causes gap at bottom
%Text and copy right on right hand title
    \colorbox{footergray}{\makebox(\textheight,220pt)[l]{\vspace{-50pt}\parbox[l]{\textheight}{\hspace{15pt}\Large \color{white}\textbf{Team Name} \par
    \vspace{15pt}\hspace{15pt}\large Person 1 Name \par
    \vspace{15pt}\hspace{15pt}\large Person 2 Name  \par 
    \vspace{50pt}
    \hspace{.55\textwidth}\copyright Company Name}}}
  \end{minipage}

    
\end{titlepage}

编辑1： 以下是 preamble.tex：

\usepackage[english]{babel}
\usepackage[letterpaper,top=1.25 cm,bottom=1cm,left=0cm,right=0cm,marginparwidth=0cm]{geometry}
\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{colortbl}
\usepackage{fontspec}
\usepackage{float}
\usepackage{booktabs}

% Define color for top bar
\definecolor{headergray}{RGB}{202, 215, 222}

% Define color for bottom bar
\definecolor{footergray}{RGB}{37, 39, 41}

% Define color for blue font
\definecolor{bluefont}{RGB}{66, 109, 155}

% Define color for table border
\definecolor{bordercolor}{RGB}{21, 147, 134}

% Create top bar colorbox
\usepackage{fancyhdr}
\setlength{\headheight}{20pt}
\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}
\fancyhf{}% Remove header/footer
\lhead{\setlength{\fboxsep}{5pt}\colorbox{headergray}{%
  \makebox[\dimexpr\linewidth-2pt][l]{\color{headergray}1
    \hfill
  }%
}}

% Create bottom bar colorbox
\lfoot{\setlength{\fboxsep}{10pt}\colorbox{footergray}{%
  \makebox[\dimexpr\linewidth-10pt][l]{\color{white} \sffamily
  \hspace{10pt} Footer Left Text
    \hfill
    \copyright \hspace{3pt} Footer Right Text\hspace{15pt}
    \textbf{\thepage} \hspace{15pt}
  }
  }}

\setlength{\headheight}{0pt}

编辑2：

xelatex --version
XeTeX 3.14159265-2.6-0.999991 (TeX Live 2019/Debian)
kpathsea version 6.3.1

编辑3：（添加 .Rmd - rmarkdown::render("template_mwe.Rmd")）

---
output:
  pdf_document:
    latex_engine: xelatex
    includes:
      in_header: "preamble.tex"
      before_body: "title.tex"
documentclass: report
classoption:
  - landscape
---


```{=latex}
%Change font style
\setmainfont{Arial} 

%Restore templated margins
\restoregeometry

% Add page title and logo to top
\setcounter{page}{2} 
\vspace*{10pt}
\hspace{20pt} \Huge Lay of the Land 
\large \color{bluefont} Quarterly Figures
\hfill \includegraphics{logo.png} \hspace{20pt}
\vspace*{20pt}

% Set line colors/thickness on tables
\arrayrulecolor{bordercolor}
\setlength{\arrayrulewidth}{1.5pt}
\setlength{\tabcolsep}{0pt}
```


```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
options(knitr.table.format = "latex")
options(knitr.kable.NA = "-")
#Import libraries
library(readr)
library(dplyr)
library(magrittr)
library(scales)
library(kableExtra)
library(tidyverse)
```


```{r, echo = FALSE}
### Import data
# f <- file.choose()
mpbqdat <- data.frame(t = rep(c(LETTERS[1:20], letters[1:20]), 4)) %>%
  arrange(t) %>%
  mutate(
    q = rep(c("I", "II", "III", "IV"), 40),
    mean = rnorm(160),
    med = rnorm(160),
    min = rnorm(160),
    max = rnorm(160))
```

\fontspec{Arial}
```{r}
#Color cell font/background based on rank in group
color_rows <- function(x) {
  sgn <- (x > 0)*1 + 1
  rnk <- rank(x, ties.method = "first", na.last = "keep")
  cell_spec(x, align = "c",
            color = case_when(is.na(sgn) ~ "black",
                              TRUE ~ c("#ff1342", "#126667")[sgn]),
            background = case_when(is.na(rnk) ~ "white",
                                   TRUE ~ c("#ffc8d1", "#ffe4e8", "#edfdfb", "#68eadd")[rnk])
  )
}

#Select and color mean q
meanq <- 
  mpbqdat %>%
  select(t, q, mean) %>%
  pivot_wider(names_from = q,
              values_from = mean) %>%
  column_to_rownames("t") %>%
  mutate(across(everything(), function(x) scales::percent(x, accuracy = .01))) %>%
  apply(., 1, color_rows)

#Select and color median q
medianq <-
  mpbqdat %>%
  select(t, q, med) %>%
  pivot_wider(names_from = q,
              values_from = med) %>%
  column_to_rownames("t") %>%
  mutate(across(everything(), function(x) scales::percent(x, accuracy = .01))) %>%
  apply(., 1, color_rows)

#Select and color max q
maxQtr <- mpbqdat %>%
  select(t, q, max) %>%
  pivot_wider(names_from = q,
              values_from = max) %>%
  select(-t) %>%
  mutate(across(everything(), function(x) scales::percent(x, accuracy = .01))) %>%
  apply(., 1, color_rows)

#Select and color min q
minQtr <- mpbqdat %>%
  select(t, q, min) %>%
  pivot_wider(names_from = q,
              values_from = min) %>%
  select(-t) %>%
  mutate(across(everything(), function(x) scales::percent(x, accuracy = .01))) %>%
  apply(., 1, color_rows)

#Create double spacer column for output spacing
blankRow <- rep("",ncol(meanq))
blankRow <- rbind(blankRow, blankRow)

#Combine qs with spacer rows for final output
output <- rbind(meanq,blankRow)
output <- rbind(output,medianq)
output <- rbind(output,blankRow)
output <- rbind(output, maxQtr)
output <- rbind(output, blankRow)
output <- rbind(output, minQtr)
output <- rbind(output, blankRow)

#Rename columns based on qs
rownames(output) = c("I", "II","III","IV", "",
                     "", "I", "II","III","IV", "",
                     "", "I", "II","III","IV", "",
                     "", "I", "II","III","IV","",""
)

#Add spacer rows between ts at given freq
freq <- 12
skips <- floor(ncol(output)/freq)

for (i in 1:skips) {
  output <- cbind(output[,1:(freq*i+(i-1))],"",output[,(freq*i+i):ncol(output)])
}

#Add spacer rows at top and bottom of output
output <- cbind(output[,0],"",output[,1:ncol(output)])
output <- cbind(output[,1:ncol(output)],"")

#Convert output to list to be able to use in Kable
tablePrep <- list(
  output %>%
    t()
) 

#Create Kable contruct
kable(tablePrep, format = "latex",
      escape = FALSE,
      longtable = FALSE,
      booktabs = TRUE,
      linesep = "") %>%
  
  #Create custom styling on final outputted table
  #font_size - change font size across whole table
  
  kable_styling(font_size = 6.75,
                full_width = FALSE,
                latex_options = "HOLD_position", position = "center") %>%
  
  #add_header_above - add/format header for q labels
  add_header_above(c(" "=1, "q" = 4, " "=2, "q" = 4, " "=2, "q" = 4, " "=2, "q" = 4," "=2), color = "#0E635A", align = "l", bold = TRUE) %>%
  
  #add_header_above - add/format header for mean/med/min/max labels 
  add_header_above(c(" "=1, "AVERAGE RETURN" = 4, " "=2, "MEDIAN RETURN" = 4, " "=2, "MAX RETURN" = 4, " "=2, "MIN RETURN" = 4, " "=2),background = c("white","#558A9B"), color = "white", line = FALSE, align = "l", bold = TRUE) %>%
  
  #row_spec - format I/II/III/IV header row
  
  row_spec(0, align = "c", bold = TRUE, color = "#558A9B", hline_after = FALSE)%>%
  
  #Remove default horizontal lines running full length of table
  sub("\\\\toprule", "", .) %>%
  sub("\\\\midrule", "", .) %>%
  sub("\\\\bottomrule", "", .) %>%
  
  #Set width of t column
  column_spec(1, width = "1.4cm")%>%
  
  #Set width of data columns and left borders
  column_spec(c(2:5,8:11,14:17,20:23), width = "1.46cm") %>%
  column_spec(c(2,8,14,20), width = "1.46cm", border_left = TRUE)%>%
  
  #Set right borders via dummy spacer columns
  column_spec(c(6,12,18,24), width_min = "0pt", width = "0pt", border_right = TRUE) %>%
  
  #Set width of spacer columns
  column_spec(c(7,13,19), width = ".6cm") %>%
  
  #Add bottom borders
  row_spec(ncol(output), extra_latex_after = "\\cline{2-5} \\cline{8-11} \\cline{14-17} \\cline{20-23}")%>%
  
  #Add top borders
  row_spec(0, extra_latex_after = "\\cline{2-5} \\cline{8-11} \\cline{14-17} \\cline{20-23}")
  ```

编辑4：（由 R markdown 生成 TeX） 由于篇幅过长，已上传至 Google Drive

Answer 1

解决方案

我xelatex遇到了与原始帖子相同的错误。

第一步是重建mwe.tex

第二步原文有错别字：

老的：

    \colorbox{footergray}{\makebox(\textheight,220pt)[l]
{\vspace{-50pt}\parbox[l]{\textheight}{\hspace{15pt}\Large 
\color{white}\textbf{Team Name} \par

新的：

    \colorbox{footergray}{\makebox{\textheight,220pt}[l]
\vspace{-50pt}\parbox[l]{\textheight}{\hspace{15pt}\Large
\color{white}\textbf{Team Name} \par

拼写错误是\makebox，此标记的参数应放在大括号中{ ... }，而不是圆括号中 ( ... )

原文中还有其他需要挑剔的地方，但与当前的问题无关。

上面概述的差异应该可以帮你解决。

您所追踪的错误发生在文档的更上层。

环境

$ xelatex --version
XeTeX 3.14159265-2.6-0.99998 (TeX Live 2017/Debian)
kpathsea version 6.2.3

平均能量损失

\documentclass[12pt]{article}

\usepackage{graphicx}
\usepackage{xcolor}
\usepackage{colortbl}
\usepackage{fontspec}
\usepackage{float}
\usepackage{booktabs}
\usepackage[english]{babel}
\usepackage[letterpaper,
            top=1.25 cm,
            bottom=1cm,
            left=0cm,
            right=0cm,
            marginparwidth=0cm]{geometry}

\definecolor{headergray}{RGB}{202, 215, 222}
\definecolor{footergray}{RGB}{37, 39, 41}
\definecolor{bluefont}{RGB}{66, 109, 155}
\definecolor{bordercolor}{RGB}{21, 147, 134}

% Create top bar colorbox
\usepackage{fancyhdr}
\setlength{\headheight}{20pt}
\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}
\fancyhf{}% Remove header/footer
\lhead{\setlength{\fboxsep}{5pt}\colorbox{headergray}{%
  \makebox[\dimexpr\linewidth-2pt][l]{\color{headergray}1
    \hfill
  }%
}}

% Create bottom bar colorbox
\lfoot{\setlength{\fboxsep}{10pt}\colorbox{footergray}{%
  \makebox[\dimexpr\linewidth-10pt][l]{\color{white} \sffamily
  \hspace{10pt} Footer Left Text
    \hfill
    \copyright \hspace{3pt} Footer Right Text\hspace{15pt}
    \textbf{\thepage} \hspace{15pt}
  }
  }}

\setlength{\headheight}{0pt}

\begin{document}

\begin{titlepage}
\newgeometry{top=.5cm,bottom=0cm, left=0cm, right = 0cm}
\thispagestyle{fancy}
\fancyfoot{}

\begin{minipage}{0.4\textwidth}
\sffamily
\vspace*{50pt}
\hspace{25pt}\includegraphics{logo.png} \par
\vspace*{150pt}
\hspace{25pt}\Huge \textbf{A Huge Title} \par
\vspace*{25pt}
\hspace{25pt} \color{bluefont}\LARGE A large subtitle... \par
\vspace*{1pt}
\hspace{25pt} ...continuing below \par
\vspace*{15pt} 
\hspace{25pt}
\color{gray}
\line(1,0) {30}
\par
\hspace{25pt}\color{black}\textbf{April 21, 2021}
\end{minipage}

\hfill

\begin{minipage}[t]{0.6\textwidth}
\vspace*{-200pt}
\includegraphics[width = \textwidth]{cover.jpg}
\vspace{-5pt}
\sffamily

\colorbox{footergray}{%
   \makebox{\textheight,220pt}[l]{%
     \vspace{-50pt}\parbox[l]{%
          \textheight}{%
              \hspace{15pt}\Large \color{white}\textbf{Team Name} \par
              \vspace{15pt}\hspace{15pt}\large Person 1 Name \par
              \vspace{15pt}\hspace{15pt}\large Person 2 Name  \par 
              \vspace{50pt}
              \hspace{0.55\textwidth}
              \copyright\ Company Name}}}

\end{minipage}
\end{titlepage}

\end{document}

Answer 2

虽然上面的答案帮助了我并教会了我一些新的东西，但我在 10 小时后通过改变解决了这个问题

%Divider line
\hspace{25pt}\color{gray}\line(1,0){30pt} \par

到

%Divider line
\hspace{25pt}\color{gray}\line(1,0){30} \par